Building Log BookDo not remove from Designated location

Building name Page 125 Prepared by Name and date

copy 2006 CIBSE

Log book author to removeoverwrite anything in blue italics Facilities manager to complete green italic sections

Building log book

Building name

Building address Building address Building address

Post code Main telephone number

Building owner

Main occupants (If different)

Include sub tenancies where appropriate

Facilities manager responsible for log-book Name Signed

Emergency contact details

This building log book was prepared by Individualrsquos name and organisation Address telephone number and e-mail address

Log book version [number] Date [date]

This building log book is analogous to a car handbook providing the facilities manager with easily understood information about how the building is intended to work It also allows ongoing building energy performance and major alterations to be recorded Please ensure that this log book is kept up-to-date and in a readily accessible (designated) position eg in the main building operations room It contains important information for anyone carrying out work on the building and its services This log book is to be kept at all times in Room nameno and location in that room Electronic master is kept at ServerPC directory name and file name

Building Log BookDo not remove from Designated location

Building name Page 225 Prepared by Name and date

copy 2006 CIBSE

Contents (Not more than one page) 1 Building history

2 Purpose and responsibilities

3 Links to other key documents

4 Main contacts

5 Commissioning handover and compliance

6 Overall building design

7 Summary of areas and occupancy

8 Summary of main building services plant

9 Overview of controlsBMS

10 Occupant information

11 Metering monitoring and targeting strategy

12 Building performance records

13 Maintenance review

14 Results of in-use investigations

Appendix relevant compliance and tests certificates Following the guidance and using this template should result in a lsquogood practicersquo building log book If any part of the template is omitted then log book author will need to ensure that it will still meet the requirements of Building Control This template is based on the best knowledge available at the time of publication However no responsibility of any kind for any injury death loss damage or delay however caused resulting from the use of this template can be accepted by the Chartered Institution of Building Services Engineers the template authors or others involved in its publication For further information about building log books including the CIBSE guidance on the use of the template contact CIBSE Telephone 020 8675 5211 or visit wwwcibseorg Template copy 2006 Chartered Institution of Building Services Engineers 222 Balham High Road London SW12 9BS Registered Charity number 278104

Building Log BookDo not remove from Designated location

Building name Page 325 Prepared by Name and date

copy 2006 CIBSE

1 Building history (Not more than one page) The log book should be reviewed annually as part of the organisationrsquos quality assurance system and an entry should be made for each review Where the log book has been updated then the changed pages should be recorded

Review date

Description of annual log book review and updates made

Pages updated or added

Facilities managerrsquos signature

Date

Include handover updates and annual reviews

Building Log BookDo not remove from Designated location

Building name Page 425 Prepared by Name and date

copy 2006 CIBSE

2 Purpose and responsibilities (Not more than one page)

Purpose of a building log book This log book is an easily accessible focal point of current information for all those working in the building It has four main functions bull Summary of the building it is a summary of all the key information about the building including

the original design commissioning and handover details and information on its management and performance In being a summary it does not wholly duplicate or replace the OampM manuals The log book is necessary for compliance with Building Regulations Part L2

bull Key reference point it is the single document in which key building energy information is logged It may be regarded as the hub document linking many other relevant documents The log book should provide key references to the detail held in less accessible OampM manuals BMS manuals and commissioning records It should therefore be kept in a readily accessible (designated) position in the main building operations room and should not be removed without the approval of the facilities manager

bull Source of informationtraining it provides a key source of information for anyone involved in the daily management or operation of the building and to anyone carrying out work on the building and its services It will be relevant to new staff and external contractorsconsultants and may play a role in staff training and induction

bull Dynamic document it is a place to log changes to the building and its operation It is also used to log building energy performance and continual fine-tuning commissioning It is essential that it is kept up-to-date Alterations should only be made with the approval of the facilities manager and should be signed and dated by that person

Further guidance on using building log books is given in the Carbon Trustrsquos Good Practice Guide GPG 348 Building log books mdash a userrsquos guide available from wwwthecarbontrustcouk

This building log book was prepared by Individualrsquos name Organisation Address

Tel no and e-mail address Date

Facilities manager responsible for log-book Name Emergency contact details Signed [signature] Date [date]

Key responsibilities of facilities manager mdash to ensure that the log book is correct and up-to-date at building handover and when

passing it on to a successor mdash to ensure that the log book is kept up to date on an ongoing basis including any

changes to the building fabric services operation or management mdash to ensure that building maintenance and energy performance are logged mdash to ensure that all those working in the building are made aware of the information

contained in the log book mdash to ensure that the log book is kept in its designated location at all times

Building Log BookDo not remove from Designated location

Building name Page 525 Prepared by Name and date

copy 2006 CIBSE

3 Links to other key documents (Not more than one page) Document (where applicable)

Location

Emergency procedures

Location 1

Health and safety file master index

Location 2

Hazard register

Location 3

OampM manuals (indicate volumes where appropriate)

Location 4

Maintenance schedules

Location 5

Asset register (if appropriate)

Location 6

BMS operations manuals

Location 7

Record drawings

Location 8

Equipment log books (eg boiler log book)

Location 9 (with the equipment)

Location could be a physical place or an electronic location on a server or web page

Building Log BookDo not remove from Designated location

Building name Page 625 Prepared by Name and date

copy 2006 CIBSE

4 Main contacts Emergency contact name 1 Address Address Post code Tel no and e-mail

Emergency contact name 2 Address Address Post code Tel no and e-mail

Electricity emergency contact name Address Address Post code Tel no and e-mail

Gas emergency contact name Address Address Post code Tel no and e-mail

Lead designer contact name Address Address Post code Tel no and e-mail

Building services design contact nameAddress Address Post code Tel no and e-mail

Lead contractor contact name Address Address Post code Tel no and e-mail

Main subcontractor contact name Address Address Post code Tel no and e-mail

Commissioning agent name Address Address Post code Tel no and e-mail

Services installer subcontractor name Address Address Post code Tel no and e-mail

Planning supervisor name Address Address Post code Tel no and e-mail

OampM and log book author name Address Address Post code Tel no and e-mail

Facilities management contractor name Address Address Post code Tel no and e-mail

Maintenance contractor name Address Address Post code Tel no and e-mail

Other Other

Other Other

Building Log BookDo not remove from Designated location

Building name Page 725 Prepared by Name and date

copy 2006 CIBSE

5 Commissioning handover and compliance (Not more than two pages if possible) Part L requires the building services systems be commissioned so that the system(s) and their controls are left in working order and can operate efficiently Use CIBSE Commissioning Code M to develop a commissioning plan and ensure that the systems operate correctly Commissioning overview Insert a brief summary of the general arrangement for commissioning eg who carried the work out and when Indicate the commissioning procedure that was followed in particular whether any CIBSE commissioning codes were followed CIBSE Commissioning Code Followed (YesNo) Certificate included in

appendix (YesNo) Code M Commissioning management Code A Air distribution systems Code B Boilers Code C Automatic controls Code L Lighting Code R Refrigerating systems Code W Water distribution systems

Commissioning results

Commissioning period [date] to [date] Signed 1

Wer

e th

e sy

stem

and

its

con

trol

s in

stal

led

as s

how

n in

the

desi

gn

draw

ings

(Y

esN

o)

2 D

id o

pera

tion

mee

t the

de

sign

spe

cific

atio

ns

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 D

id th

e sy

stem

ope

rate

ef

ficie

ntly

in a

ll m

odes

(Y

esN

o)

Commentsproblems Where the answer is NO indicate any commissioning problems or significant changes that have been made to the designs during (or as a result of) installationcommissioning or any value engineering exercises including any significant commissioning failures and remedial work that took place

Lighting

Fans

Air handling units

Pumps

Mechanical cooling

Heat rejection

Space heating

HWS

Central BMS

etc

Where appropriate this section should also cover daylighting natural ventilation and passive cooling systems

Building Log BookDo not remove from Designated location

Building name Page 825 Prepared by Name and date

copy 2006 CIBSE

Air infiltration Insert a summary description of any building air pressure test showing the measured air permeability of the building fabric against the necessary target in Part L2 This should also include test failure results any measures to redress a test failure and any re-test results

Insulation continuity Insert a summary description of any infra-red thermography investigations to confirm thermal continuity of insulation in the building fabric for compliance with Part L2 This should also include test failure results any measures to redress a test failure and any re-test results If thermography is not used a report should be obtained from a suitable qualified person and a copy attached to this log book Handover Insert a summary description of the handover process that took place

Handover took place on [date] End of defects liability period [date] The handover procedure was managed by [name] (Lead designer) The documents handed over are listed in section 3

Building Log BookDo not remove from Designated location

Building name Page 925 Prepared by Name and date

copy 2006 CIBSE

6 Overall building design (Not more than three pages if possible) General description of building Insert a summary description of the building type its main uses and types of occupancy etc Client requirements Insert a summary description of the original client requirements eg lsquoExternal and internal design conditions air change rates energy targets installed power density targets etcrsquo Conceptual design Insert a summary description of the overall building design philosophy at a conceptual level including management and operation of the plant eg lsquoNaturally ventilated cross ventilation between the two main facades via openable windows with daylight penetration to 6 m and daylight responsive controlsrsquo This description should include passive features eg atria ventilation stacks and light wells alongside more active features eg mechanical air handling CHP etc showing the interaction between these elements

Diagrams Insert one or two simple diagrams to illustrate the overall building design philosophy One might show the overall philosophy in terms of key architectural features eg passive stack ventilation daylighting devices and shading elements Another might show the overall philosophy in terms of key services eg heatingcooling and ventilation strategies indicating fuels used and main plant Where appropriate these should include arrows showing intended movement of heat cooling light and air Add a reference to the more detailed information given in the system sheets starting on page 14 If possible one single overview diagram is preferable as the objective is a summary of the whole design intent (ie how the building is intended to work) It is essential to show the interaction between the different elements of the design philosophy

Building Log BookDo not remove from Designated location

Building name Page 1025 Prepared by Name and date

copy 2006 CIBSE

Special design features Insert a summary description of any special design features eg atria shading etc Insert a summary description of the any special energy efficiency features eg CHP renewables heat recovery etc Design assessment Where appropriate insert a summary description of the Part L2 design assessment of carbon emissions method or whole building method Key interactions Insert a summary description of the important interactions between different parts of the design eg lighting and cooling daylighting and artificial lighting cooling and ventilation Benefits and limitations of the design Insert a summary description of the main benefits of the design eg operability flexibility maintainability sustainability energy efficiency Insert a summary description of the main limitations of the design eg maximum occupancy and occupancy density no smoking policy winter under-heating and summer overheating Key lsquodos and donrsquotsrsquo Key lsquodos and donrsquotsrsquo anticipating what the operator may do that could damage the overall design intent eg installing partitioning that could damage the ventilation strategy

Do (1) hellip (2) hellip (3) hellip Donrsquot (1) hellip (2) hellip (3) hellip

Building Log BookDo not remove from Designated location

Building name Page 1125 Prepared by Name and date

copy 2006 CIBSE

7 Summary of areas and occupancy (Not more than one page of text plus one simple plan per floor) Occupancy and activities The total number of occupants in the building is [number] (based on core hours of use)

Main occupied areas Weekday hours

Saturday hours

Sunday hours

Total hoursweek

Flextime (YesNo)

Late working sometimes (YesNo)

No of occupants

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Insert a summary of the main activities in each different zone of the building Insert a summary of the likely occupancy patterns including numbers of people and occupancy periods Floor areas The total floor area of the building is [area] m2 (based on gross floor area)

of total area by servicing system Total

Total area (m2)

Area type Untreated ()

Naturally ventilated

()

Mechanically ventilated

()

Mixed mode ()

Heating and cooling only ()

Full air conditioning with humidity

control ()

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Total 100

Total area (m2)

Fill in a list of floor area types in column 1 broken down by main activity areaszones Complete the matrix to indicate the percentage of each area type that is untreated naturally ventilated air conditioned etc Check this adds up to 100 and to the total floor area both horizontally and vertically Ensure that floor areas are accurate as they are used in the energy performance calculations It is preferable to use gross floor areas in m2 and then indicate untreated and special areas as separate area types Tenancies Where the building is divided into tenancies insert a list of the tenancies with their floor areas and a simple marked up floor plan to indicate their location Where sub-metering is used for billing then the location of meters should be indicated

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 225 Prepared by Name and date

copy 2006 CIBSE

Contents (Not more than one page) 1 Building history

2 Purpose and responsibilities

3 Links to other key documents

4 Main contacts

5 Commissioning handover and compliance

6 Overall building design

7 Summary of areas and occupancy

8 Summary of main building services plant

9 Overview of controlsBMS

10 Occupant information

11 Metering monitoring and targeting strategy

12 Building performance records

13 Maintenance review

14 Results of in-use investigations

Appendix relevant compliance and tests certificates Following the guidance and using this template should result in a lsquogood practicersquo building log book If any part of the template is omitted then log book author will need to ensure that it will still meet the requirements of Building Control This template is based on the best knowledge available at the time of publication However no responsibility of any kind for any injury death loss damage or delay however caused resulting from the use of this template can be accepted by the Chartered Institution of Building Services Engineers the template authors or others involved in its publication For further information about building log books including the CIBSE guidance on the use of the template contact CIBSE Telephone 020 8675 5211 or visit wwwcibseorg Template copy 2006 Chartered Institution of Building Services Engineers 222 Balham High Road London SW12 9BS Registered Charity number 278104

Building Log BookDo not remove from Designated location

Building name Page 325 Prepared by Name and date

copy 2006 CIBSE

1 Building history (Not more than one page) The log book should be reviewed annually as part of the organisationrsquos quality assurance system and an entry should be made for each review Where the log book has been updated then the changed pages should be recorded

Review date

Description of annual log book review and updates made

Pages updated or added

Facilities managerrsquos signature

Date

Include handover updates and annual reviews

Building Log BookDo not remove from Designated location

Building name Page 425 Prepared by Name and date

copy 2006 CIBSE

2 Purpose and responsibilities (Not more than one page)

Purpose of a building log book This log book is an easily accessible focal point of current information for all those working in the building It has four main functions bull Summary of the building it is a summary of all the key information about the building including

the original design commissioning and handover details and information on its management and performance In being a summary it does not wholly duplicate or replace the OampM manuals The log book is necessary for compliance with Building Regulations Part L2

bull Key reference point it is the single document in which key building energy information is logged It may be regarded as the hub document linking many other relevant documents The log book should provide key references to the detail held in less accessible OampM manuals BMS manuals and commissioning records It should therefore be kept in a readily accessible (designated) position in the main building operations room and should not be removed without the approval of the facilities manager

bull Source of informationtraining it provides a key source of information for anyone involved in the daily management or operation of the building and to anyone carrying out work on the building and its services It will be relevant to new staff and external contractorsconsultants and may play a role in staff training and induction

bull Dynamic document it is a place to log changes to the building and its operation It is also used to log building energy performance and continual fine-tuning commissioning It is essential that it is kept up-to-date Alterations should only be made with the approval of the facilities manager and should be signed and dated by that person

Further guidance on using building log books is given in the Carbon Trustrsquos Good Practice Guide GPG 348 Building log books mdash a userrsquos guide available from wwwthecarbontrustcouk

This building log book was prepared by Individualrsquos name Organisation Address

Tel no and e-mail address Date

Facilities manager responsible for log-book Name Emergency contact details Signed [signature] Date [date]

Key responsibilities of facilities manager mdash to ensure that the log book is correct and up-to-date at building handover and when

passing it on to a successor mdash to ensure that the log book is kept up to date on an ongoing basis including any

changes to the building fabric services operation or management mdash to ensure that building maintenance and energy performance are logged mdash to ensure that all those working in the building are made aware of the information

contained in the log book mdash to ensure that the log book is kept in its designated location at all times

Building Log BookDo not remove from Designated location

Building name Page 525 Prepared by Name and date

copy 2006 CIBSE

3 Links to other key documents (Not more than one page) Document (where applicable)

Location

Emergency procedures

Location 1

Health and safety file master index

Location 2

Hazard register

Location 3

OampM manuals (indicate volumes where appropriate)

Location 4

Maintenance schedules

Location 5

Asset register (if appropriate)

Location 6

BMS operations manuals

Location 7

Record drawings

Location 8

Equipment log books (eg boiler log book)

Location 9 (with the equipment)

Location could be a physical place or an electronic location on a server or web page

Building Log BookDo not remove from Designated location

Building name Page 625 Prepared by Name and date

copy 2006 CIBSE

4 Main contacts Emergency contact name 1 Address Address Post code Tel no and e-mail

Emergency contact name 2 Address Address Post code Tel no and e-mail

Electricity emergency contact name Address Address Post code Tel no and e-mail

Gas emergency contact name Address Address Post code Tel no and e-mail

Lead designer contact name Address Address Post code Tel no and e-mail

Building services design contact nameAddress Address Post code Tel no and e-mail

Lead contractor contact name Address Address Post code Tel no and e-mail

Main subcontractor contact name Address Address Post code Tel no and e-mail

Commissioning agent name Address Address Post code Tel no and e-mail

Services installer subcontractor name Address Address Post code Tel no and e-mail

Planning supervisor name Address Address Post code Tel no and e-mail

OampM and log book author name Address Address Post code Tel no and e-mail

Facilities management contractor name Address Address Post code Tel no and e-mail

Maintenance contractor name Address Address Post code Tel no and e-mail

Other Other

Other Other

Building Log BookDo not remove from Designated location

Building name Page 725 Prepared by Name and date

copy 2006 CIBSE

5 Commissioning handover and compliance (Not more than two pages if possible) Part L requires the building services systems be commissioned so that the system(s) and their controls are left in working order and can operate efficiently Use CIBSE Commissioning Code M to develop a commissioning plan and ensure that the systems operate correctly Commissioning overview Insert a brief summary of the general arrangement for commissioning eg who carried the work out and when Indicate the commissioning procedure that was followed in particular whether any CIBSE commissioning codes were followed CIBSE Commissioning Code Followed (YesNo) Certificate included in

appendix (YesNo) Code M Commissioning management Code A Air distribution systems Code B Boilers Code C Automatic controls Code L Lighting Code R Refrigerating systems Code W Water distribution systems

Commissioning results

Commissioning period [date] to [date] Signed 1

Wer

e th

e sy

stem

and

its

con

trol

s in

stal

led

as s

how

n in

the

desi

gn

draw

ings

(Y

esN

o)

2 D

id o

pera

tion

mee

t the

de

sign

spe

cific

atio

ns

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 D

id th

e sy

stem

ope

rate

ef

ficie

ntly

in a

ll m

odes

(Y

esN

o)

Commentsproblems Where the answer is NO indicate any commissioning problems or significant changes that have been made to the designs during (or as a result of) installationcommissioning or any value engineering exercises including any significant commissioning failures and remedial work that took place

Lighting

Fans

Air handling units

Pumps

Mechanical cooling

Heat rejection

Space heating

HWS

Central BMS

etc

Where appropriate this section should also cover daylighting natural ventilation and passive cooling systems

Building Log BookDo not remove from Designated location

Building name Page 825 Prepared by Name and date

copy 2006 CIBSE

Air infiltration Insert a summary description of any building air pressure test showing the measured air permeability of the building fabric against the necessary target in Part L2 This should also include test failure results any measures to redress a test failure and any re-test results

Insulation continuity Insert a summary description of any infra-red thermography investigations to confirm thermal continuity of insulation in the building fabric for compliance with Part L2 This should also include test failure results any measures to redress a test failure and any re-test results If thermography is not used a report should be obtained from a suitable qualified person and a copy attached to this log book Handover Insert a summary description of the handover process that took place

Handover took place on [date] End of defects liability period [date] The handover procedure was managed by [name] (Lead designer) The documents handed over are listed in section 3

Building Log BookDo not remove from Designated location

Building name Page 925 Prepared by Name and date

copy 2006 CIBSE

6 Overall building design (Not more than three pages if possible) General description of building Insert a summary description of the building type its main uses and types of occupancy etc Client requirements Insert a summary description of the original client requirements eg lsquoExternal and internal design conditions air change rates energy targets installed power density targets etcrsquo Conceptual design Insert a summary description of the overall building design philosophy at a conceptual level including management and operation of the plant eg lsquoNaturally ventilated cross ventilation between the two main facades via openable windows with daylight penetration to 6 m and daylight responsive controlsrsquo This description should include passive features eg atria ventilation stacks and light wells alongside more active features eg mechanical air handling CHP etc showing the interaction between these elements

Diagrams Insert one or two simple diagrams to illustrate the overall building design philosophy One might show the overall philosophy in terms of key architectural features eg passive stack ventilation daylighting devices and shading elements Another might show the overall philosophy in terms of key services eg heatingcooling and ventilation strategies indicating fuels used and main plant Where appropriate these should include arrows showing intended movement of heat cooling light and air Add a reference to the more detailed information given in the system sheets starting on page 14 If possible one single overview diagram is preferable as the objective is a summary of the whole design intent (ie how the building is intended to work) It is essential to show the interaction between the different elements of the design philosophy

Building Log BookDo not remove from Designated location

Building name Page 1025 Prepared by Name and date

copy 2006 CIBSE

Special design features Insert a summary description of any special design features eg atria shading etc Insert a summary description of the any special energy efficiency features eg CHP renewables heat recovery etc Design assessment Where appropriate insert a summary description of the Part L2 design assessment of carbon emissions method or whole building method Key interactions Insert a summary description of the important interactions between different parts of the design eg lighting and cooling daylighting and artificial lighting cooling and ventilation Benefits and limitations of the design Insert a summary description of the main benefits of the design eg operability flexibility maintainability sustainability energy efficiency Insert a summary description of the main limitations of the design eg maximum occupancy and occupancy density no smoking policy winter under-heating and summer overheating Key lsquodos and donrsquotsrsquo Key lsquodos and donrsquotsrsquo anticipating what the operator may do that could damage the overall design intent eg installing partitioning that could damage the ventilation strategy

Do (1) hellip (2) hellip (3) hellip Donrsquot (1) hellip (2) hellip (3) hellip

Building Log BookDo not remove from Designated location

Building name Page 1125 Prepared by Name and date

copy 2006 CIBSE

7 Summary of areas and occupancy (Not more than one page of text plus one simple plan per floor) Occupancy and activities The total number of occupants in the building is [number] (based on core hours of use)

Main occupied areas Weekday hours

Saturday hours

Sunday hours

Total hoursweek

Flextime (YesNo)

Late working sometimes (YesNo)

No of occupants

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Insert a summary of the main activities in each different zone of the building Insert a summary of the likely occupancy patterns including numbers of people and occupancy periods Floor areas The total floor area of the building is [area] m2 (based on gross floor area)

of total area by servicing system Total

Total area (m2)

Area type Untreated ()

Naturally ventilated

()

Mechanically ventilated

()

Mixed mode ()

Heating and cooling only ()

Full air conditioning with humidity

control ()

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Total 100

Total area (m2)

Fill in a list of floor area types in column 1 broken down by main activity areaszones Complete the matrix to indicate the percentage of each area type that is untreated naturally ventilated air conditioned etc Check this adds up to 100 and to the total floor area both horizontally and vertically Ensure that floor areas are accurate as they are used in the energy performance calculations It is preferable to use gross floor areas in m2 and then indicate untreated and special areas as separate area types Tenancies Where the building is divided into tenancies insert a list of the tenancies with their floor areas and a simple marked up floor plan to indicate their location Where sub-metering is used for billing then the location of meters should be indicated

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 325 Prepared by Name and date

copy 2006 CIBSE

1 Building history (Not more than one page) The log book should be reviewed annually as part of the organisationrsquos quality assurance system and an entry should be made for each review Where the log book has been updated then the changed pages should be recorded

Review date

Description of annual log book review and updates made

Pages updated or added

Facilities managerrsquos signature

Date

Include handover updates and annual reviews

Building Log BookDo not remove from Designated location

Building name Page 425 Prepared by Name and date

copy 2006 CIBSE

2 Purpose and responsibilities (Not more than one page)

Purpose of a building log book This log book is an easily accessible focal point of current information for all those working in the building It has four main functions bull Summary of the building it is a summary of all the key information about the building including

the original design commissioning and handover details and information on its management and performance In being a summary it does not wholly duplicate or replace the OampM manuals The log book is necessary for compliance with Building Regulations Part L2

bull Key reference point it is the single document in which key building energy information is logged It may be regarded as the hub document linking many other relevant documents The log book should provide key references to the detail held in less accessible OampM manuals BMS manuals and commissioning records It should therefore be kept in a readily accessible (designated) position in the main building operations room and should not be removed without the approval of the facilities manager

bull Source of informationtraining it provides a key source of information for anyone involved in the daily management or operation of the building and to anyone carrying out work on the building and its services It will be relevant to new staff and external contractorsconsultants and may play a role in staff training and induction

bull Dynamic document it is a place to log changes to the building and its operation It is also used to log building energy performance and continual fine-tuning commissioning It is essential that it is kept up-to-date Alterations should only be made with the approval of the facilities manager and should be signed and dated by that person

Further guidance on using building log books is given in the Carbon Trustrsquos Good Practice Guide GPG 348 Building log books mdash a userrsquos guide available from wwwthecarbontrustcouk

This building log book was prepared by Individualrsquos name Organisation Address

Tel no and e-mail address Date

Facilities manager responsible for log-book Name Emergency contact details Signed [signature] Date [date]

Key responsibilities of facilities manager mdash to ensure that the log book is correct and up-to-date at building handover and when

passing it on to a successor mdash to ensure that the log book is kept up to date on an ongoing basis including any

changes to the building fabric services operation or management mdash to ensure that building maintenance and energy performance are logged mdash to ensure that all those working in the building are made aware of the information

contained in the log book mdash to ensure that the log book is kept in its designated location at all times

Building Log BookDo not remove from Designated location

Building name Page 525 Prepared by Name and date

copy 2006 CIBSE

3 Links to other key documents (Not more than one page) Document (where applicable)

Location

Emergency procedures

Location 1

Health and safety file master index

Location 2

Hazard register

Location 3

OampM manuals (indicate volumes where appropriate)

Location 4

Maintenance schedules

Location 5

Asset register (if appropriate)

Location 6

BMS operations manuals

Location 7

Record drawings

Location 8

Equipment log books (eg boiler log book)

Location 9 (with the equipment)

Location could be a physical place or an electronic location on a server or web page

Building Log BookDo not remove from Designated location

Building name Page 625 Prepared by Name and date

copy 2006 CIBSE

4 Main contacts Emergency contact name 1 Address Address Post code Tel no and e-mail

Emergency contact name 2 Address Address Post code Tel no and e-mail

Electricity emergency contact name Address Address Post code Tel no and e-mail

Gas emergency contact name Address Address Post code Tel no and e-mail

Lead designer contact name Address Address Post code Tel no and e-mail

Building services design contact nameAddress Address Post code Tel no and e-mail

Lead contractor contact name Address Address Post code Tel no and e-mail

Main subcontractor contact name Address Address Post code Tel no and e-mail

Commissioning agent name Address Address Post code Tel no and e-mail

Services installer subcontractor name Address Address Post code Tel no and e-mail

Planning supervisor name Address Address Post code Tel no and e-mail

OampM and log book author name Address Address Post code Tel no and e-mail

Facilities management contractor name Address Address Post code Tel no and e-mail

Maintenance contractor name Address Address Post code Tel no and e-mail

Other Other

Other Other

Building Log BookDo not remove from Designated location

Building name Page 725 Prepared by Name and date

copy 2006 CIBSE

5 Commissioning handover and compliance (Not more than two pages if possible) Part L requires the building services systems be commissioned so that the system(s) and their controls are left in working order and can operate efficiently Use CIBSE Commissioning Code M to develop a commissioning plan and ensure that the systems operate correctly Commissioning overview Insert a brief summary of the general arrangement for commissioning eg who carried the work out and when Indicate the commissioning procedure that was followed in particular whether any CIBSE commissioning codes were followed CIBSE Commissioning Code Followed (YesNo) Certificate included in

appendix (YesNo) Code M Commissioning management Code A Air distribution systems Code B Boilers Code C Automatic controls Code L Lighting Code R Refrigerating systems Code W Water distribution systems

Commissioning results

Commissioning period [date] to [date] Signed 1

Wer

e th

e sy

stem

and

its

con

trol

s in

stal

led

as s

how

n in

the

desi

gn

draw

ings

(Y

esN

o)

2 D

id o

pera

tion

mee

t the

de

sign

spe

cific

atio

ns

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 D

id th

e sy

stem

ope

rate

ef

ficie

ntly

in a

ll m

odes

(Y

esN

o)

Commentsproblems Where the answer is NO indicate any commissioning problems or significant changes that have been made to the designs during (or as a result of) installationcommissioning or any value engineering exercises including any significant commissioning failures and remedial work that took place

Lighting

Fans

Air handling units

Pumps

Mechanical cooling

Heat rejection

Space heating

HWS

Central BMS

etc

Where appropriate this section should also cover daylighting natural ventilation and passive cooling systems

Building Log BookDo not remove from Designated location

Building name Page 825 Prepared by Name and date

copy 2006 CIBSE

Air infiltration Insert a summary description of any building air pressure test showing the measured air permeability of the building fabric against the necessary target in Part L2 This should also include test failure results any measures to redress a test failure and any re-test results

Insulation continuity Insert a summary description of any infra-red thermography investigations to confirm thermal continuity of insulation in the building fabric for compliance with Part L2 This should also include test failure results any measures to redress a test failure and any re-test results If thermography is not used a report should be obtained from a suitable qualified person and a copy attached to this log book Handover Insert a summary description of the handover process that took place

Handover took place on [date] End of defects liability period [date] The handover procedure was managed by [name] (Lead designer) The documents handed over are listed in section 3

Building Log BookDo not remove from Designated location

Building name Page 925 Prepared by Name and date

copy 2006 CIBSE

6 Overall building design (Not more than three pages if possible) General description of building Insert a summary description of the building type its main uses and types of occupancy etc Client requirements Insert a summary description of the original client requirements eg lsquoExternal and internal design conditions air change rates energy targets installed power density targets etcrsquo Conceptual design Insert a summary description of the overall building design philosophy at a conceptual level including management and operation of the plant eg lsquoNaturally ventilated cross ventilation between the two main facades via openable windows with daylight penetration to 6 m and daylight responsive controlsrsquo This description should include passive features eg atria ventilation stacks and light wells alongside more active features eg mechanical air handling CHP etc showing the interaction between these elements

Diagrams Insert one or two simple diagrams to illustrate the overall building design philosophy One might show the overall philosophy in terms of key architectural features eg passive stack ventilation daylighting devices and shading elements Another might show the overall philosophy in terms of key services eg heatingcooling and ventilation strategies indicating fuels used and main plant Where appropriate these should include arrows showing intended movement of heat cooling light and air Add a reference to the more detailed information given in the system sheets starting on page 14 If possible one single overview diagram is preferable as the objective is a summary of the whole design intent (ie how the building is intended to work) It is essential to show the interaction between the different elements of the design philosophy

Building Log BookDo not remove from Designated location

Building name Page 1025 Prepared by Name and date

copy 2006 CIBSE

Special design features Insert a summary description of any special design features eg atria shading etc Insert a summary description of the any special energy efficiency features eg CHP renewables heat recovery etc Design assessment Where appropriate insert a summary description of the Part L2 design assessment of carbon emissions method or whole building method Key interactions Insert a summary description of the important interactions between different parts of the design eg lighting and cooling daylighting and artificial lighting cooling and ventilation Benefits and limitations of the design Insert a summary description of the main benefits of the design eg operability flexibility maintainability sustainability energy efficiency Insert a summary description of the main limitations of the design eg maximum occupancy and occupancy density no smoking policy winter under-heating and summer overheating Key lsquodos and donrsquotsrsquo Key lsquodos and donrsquotsrsquo anticipating what the operator may do that could damage the overall design intent eg installing partitioning that could damage the ventilation strategy

Do (1) hellip (2) hellip (3) hellip Donrsquot (1) hellip (2) hellip (3) hellip

Building Log BookDo not remove from Designated location

Building name Page 1125 Prepared by Name and date

copy 2006 CIBSE

7 Summary of areas and occupancy (Not more than one page of text plus one simple plan per floor) Occupancy and activities The total number of occupants in the building is [number] (based on core hours of use)

Main occupied areas Weekday hours

Saturday hours

Sunday hours

Total hoursweek

Flextime (YesNo)

Late working sometimes (YesNo)

No of occupants

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Insert a summary of the main activities in each different zone of the building Insert a summary of the likely occupancy patterns including numbers of people and occupancy periods Floor areas The total floor area of the building is [area] m2 (based on gross floor area)

of total area by servicing system Total

Total area (m2)

Area type Untreated ()

Naturally ventilated

()

Mechanically ventilated

()

Mixed mode ()

Heating and cooling only ()

Full air conditioning with humidity

control ()

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Total 100

Total area (m2)

Fill in a list of floor area types in column 1 broken down by main activity areaszones Complete the matrix to indicate the percentage of each area type that is untreated naturally ventilated air conditioned etc Check this adds up to 100 and to the total floor area both horizontally and vertically Ensure that floor areas are accurate as they are used in the energy performance calculations It is preferable to use gross floor areas in m2 and then indicate untreated and special areas as separate area types Tenancies Where the building is divided into tenancies insert a list of the tenancies with their floor areas and a simple marked up floor plan to indicate their location Where sub-metering is used for billing then the location of meters should be indicated

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 425 Prepared by Name and date

copy 2006 CIBSE

2 Purpose and responsibilities (Not more than one page)

Purpose of a building log book This log book is an easily accessible focal point of current information for all those working in the building It has four main functions bull Summary of the building it is a summary of all the key information about the building including

the original design commissioning and handover details and information on its management and performance In being a summary it does not wholly duplicate or replace the OampM manuals The log book is necessary for compliance with Building Regulations Part L2

bull Key reference point it is the single document in which key building energy information is logged It may be regarded as the hub document linking many other relevant documents The log book should provide key references to the detail held in less accessible OampM manuals BMS manuals and commissioning records It should therefore be kept in a readily accessible (designated) position in the main building operations room and should not be removed without the approval of the facilities manager

bull Source of informationtraining it provides a key source of information for anyone involved in the daily management or operation of the building and to anyone carrying out work on the building and its services It will be relevant to new staff and external contractorsconsultants and may play a role in staff training and induction

bull Dynamic document it is a place to log changes to the building and its operation It is also used to log building energy performance and continual fine-tuning commissioning It is essential that it is kept up-to-date Alterations should only be made with the approval of the facilities manager and should be signed and dated by that person

Further guidance on using building log books is given in the Carbon Trustrsquos Good Practice Guide GPG 348 Building log books mdash a userrsquos guide available from wwwthecarbontrustcouk

This building log book was prepared by Individualrsquos name Organisation Address

Tel no and e-mail address Date

Facilities manager responsible for log-book Name Emergency contact details Signed [signature] Date [date]

Key responsibilities of facilities manager mdash to ensure that the log book is correct and up-to-date at building handover and when

passing it on to a successor mdash to ensure that the log book is kept up to date on an ongoing basis including any

changes to the building fabric services operation or management mdash to ensure that building maintenance and energy performance are logged mdash to ensure that all those working in the building are made aware of the information

contained in the log book mdash to ensure that the log book is kept in its designated location at all times

Building Log BookDo not remove from Designated location

Building name Page 525 Prepared by Name and date

copy 2006 CIBSE

3 Links to other key documents (Not more than one page) Document (where applicable)

Location

Emergency procedures

Location 1

Health and safety file master index

Location 2

Hazard register

Location 3

OampM manuals (indicate volumes where appropriate)

Location 4

Maintenance schedules

Location 5

Asset register (if appropriate)

Location 6

BMS operations manuals

Location 7

Record drawings

Location 8

Equipment log books (eg boiler log book)

Location 9 (with the equipment)

Location could be a physical place or an electronic location on a server or web page

Building Log BookDo not remove from Designated location

Building name Page 625 Prepared by Name and date

copy 2006 CIBSE

4 Main contacts Emergency contact name 1 Address Address Post code Tel no and e-mail

Emergency contact name 2 Address Address Post code Tel no and e-mail

Electricity emergency contact name Address Address Post code Tel no and e-mail

Gas emergency contact name Address Address Post code Tel no and e-mail

Lead designer contact name Address Address Post code Tel no and e-mail

Building services design contact nameAddress Address Post code Tel no and e-mail

Lead contractor contact name Address Address Post code Tel no and e-mail

Main subcontractor contact name Address Address Post code Tel no and e-mail

Commissioning agent name Address Address Post code Tel no and e-mail

Services installer subcontractor name Address Address Post code Tel no and e-mail

Planning supervisor name Address Address Post code Tel no and e-mail

OampM and log book author name Address Address Post code Tel no and e-mail

Facilities management contractor name Address Address Post code Tel no and e-mail

Maintenance contractor name Address Address Post code Tel no and e-mail

Other Other

Other Other

Building Log BookDo not remove from Designated location

Building name Page 725 Prepared by Name and date

copy 2006 CIBSE

5 Commissioning handover and compliance (Not more than two pages if possible) Part L requires the building services systems be commissioned so that the system(s) and their controls are left in working order and can operate efficiently Use CIBSE Commissioning Code M to develop a commissioning plan and ensure that the systems operate correctly Commissioning overview Insert a brief summary of the general arrangement for commissioning eg who carried the work out and when Indicate the commissioning procedure that was followed in particular whether any CIBSE commissioning codes were followed CIBSE Commissioning Code Followed (YesNo) Certificate included in

appendix (YesNo) Code M Commissioning management Code A Air distribution systems Code B Boilers Code C Automatic controls Code L Lighting Code R Refrigerating systems Code W Water distribution systems

Commissioning results

Commissioning period [date] to [date] Signed 1

Wer

e th

e sy

stem

and

its

con

trol

s in

stal

led

as s

how

n in

the

desi

gn

draw

ings

(Y

esN

o)

2 D

id o

pera

tion

mee

t the

de

sign

spe

cific

atio

ns

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 D

id th

e sy

stem

ope

rate

ef

ficie

ntly

in a

ll m

odes

(Y

esN

o)

Commentsproblems Where the answer is NO indicate any commissioning problems or significant changes that have been made to the designs during (or as a result of) installationcommissioning or any value engineering exercises including any significant commissioning failures and remedial work that took place

Lighting

Fans

Air handling units

Pumps

Mechanical cooling

Heat rejection

Space heating

HWS

Central BMS

etc

Where appropriate this section should also cover daylighting natural ventilation and passive cooling systems

Building Log BookDo not remove from Designated location

Building name Page 825 Prepared by Name and date

copy 2006 CIBSE

Air infiltration Insert a summary description of any building air pressure test showing the measured air permeability of the building fabric against the necessary target in Part L2 This should also include test failure results any measures to redress a test failure and any re-test results

Insulation continuity Insert a summary description of any infra-red thermography investigations to confirm thermal continuity of insulation in the building fabric for compliance with Part L2 This should also include test failure results any measures to redress a test failure and any re-test results If thermography is not used a report should be obtained from a suitable qualified person and a copy attached to this log book Handover Insert a summary description of the handover process that took place

Handover took place on [date] End of defects liability period [date] The handover procedure was managed by [name] (Lead designer) The documents handed over are listed in section 3

Building Log BookDo not remove from Designated location

Building name Page 925 Prepared by Name and date

copy 2006 CIBSE

6 Overall building design (Not more than three pages if possible) General description of building Insert a summary description of the building type its main uses and types of occupancy etc Client requirements Insert a summary description of the original client requirements eg lsquoExternal and internal design conditions air change rates energy targets installed power density targets etcrsquo Conceptual design Insert a summary description of the overall building design philosophy at a conceptual level including management and operation of the plant eg lsquoNaturally ventilated cross ventilation between the two main facades via openable windows with daylight penetration to 6 m and daylight responsive controlsrsquo This description should include passive features eg atria ventilation stacks and light wells alongside more active features eg mechanical air handling CHP etc showing the interaction between these elements

Diagrams Insert one or two simple diagrams to illustrate the overall building design philosophy One might show the overall philosophy in terms of key architectural features eg passive stack ventilation daylighting devices and shading elements Another might show the overall philosophy in terms of key services eg heatingcooling and ventilation strategies indicating fuels used and main plant Where appropriate these should include arrows showing intended movement of heat cooling light and air Add a reference to the more detailed information given in the system sheets starting on page 14 If possible one single overview diagram is preferable as the objective is a summary of the whole design intent (ie how the building is intended to work) It is essential to show the interaction between the different elements of the design philosophy

Building Log BookDo not remove from Designated location

Building name Page 1025 Prepared by Name and date

copy 2006 CIBSE

Special design features Insert a summary description of any special design features eg atria shading etc Insert a summary description of the any special energy efficiency features eg CHP renewables heat recovery etc Design assessment Where appropriate insert a summary description of the Part L2 design assessment of carbon emissions method or whole building method Key interactions Insert a summary description of the important interactions between different parts of the design eg lighting and cooling daylighting and artificial lighting cooling and ventilation Benefits and limitations of the design Insert a summary description of the main benefits of the design eg operability flexibility maintainability sustainability energy efficiency Insert a summary description of the main limitations of the design eg maximum occupancy and occupancy density no smoking policy winter under-heating and summer overheating Key lsquodos and donrsquotsrsquo Key lsquodos and donrsquotsrsquo anticipating what the operator may do that could damage the overall design intent eg installing partitioning that could damage the ventilation strategy

Do (1) hellip (2) hellip (3) hellip Donrsquot (1) hellip (2) hellip (3) hellip

Building Log BookDo not remove from Designated location

Building name Page 1125 Prepared by Name and date

copy 2006 CIBSE

7 Summary of areas and occupancy (Not more than one page of text plus one simple plan per floor) Occupancy and activities The total number of occupants in the building is [number] (based on core hours of use)

Main occupied areas Weekday hours

Saturday hours

Sunday hours

Total hoursweek

Flextime (YesNo)

Late working sometimes (YesNo)

No of occupants

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Insert a summary of the main activities in each different zone of the building Insert a summary of the likely occupancy patterns including numbers of people and occupancy periods Floor areas The total floor area of the building is [area] m2 (based on gross floor area)

of total area by servicing system Total

Total area (m2)

Area type Untreated ()

Naturally ventilated

()

Mechanically ventilated

()

Mixed mode ()

Heating and cooling only ()

Full air conditioning with humidity

control ()

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Total 100

Total area (m2)

Fill in a list of floor area types in column 1 broken down by main activity areaszones Complete the matrix to indicate the percentage of each area type that is untreated naturally ventilated air conditioned etc Check this adds up to 100 and to the total floor area both horizontally and vertically Ensure that floor areas are accurate as they are used in the energy performance calculations It is preferable to use gross floor areas in m2 and then indicate untreated and special areas as separate area types Tenancies Where the building is divided into tenancies insert a list of the tenancies with their floor areas and a simple marked up floor plan to indicate their location Where sub-metering is used for billing then the location of meters should be indicated

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 525 Prepared by Name and date

copy 2006 CIBSE

3 Links to other key documents (Not more than one page) Document (where applicable)

Location

Emergency procedures

Location 1

Health and safety file master index

Location 2

Hazard register

Location 3

OampM manuals (indicate volumes where appropriate)

Location 4

Maintenance schedules

Location 5

Asset register (if appropriate)

Location 6

BMS operations manuals

Location 7

Record drawings

Location 8

Equipment log books (eg boiler log book)

Location 9 (with the equipment)

Location could be a physical place or an electronic location on a server or web page

Building Log BookDo not remove from Designated location

Building name Page 625 Prepared by Name and date

copy 2006 CIBSE

4 Main contacts Emergency contact name 1 Address Address Post code Tel no and e-mail

Emergency contact name 2 Address Address Post code Tel no and e-mail

Electricity emergency contact name Address Address Post code Tel no and e-mail

Gas emergency contact name Address Address Post code Tel no and e-mail

Lead designer contact name Address Address Post code Tel no and e-mail

Building services design contact nameAddress Address Post code Tel no and e-mail

Lead contractor contact name Address Address Post code Tel no and e-mail

Main subcontractor contact name Address Address Post code Tel no and e-mail

Commissioning agent name Address Address Post code Tel no and e-mail

Services installer subcontractor name Address Address Post code Tel no and e-mail

Planning supervisor name Address Address Post code Tel no and e-mail

OampM and log book author name Address Address Post code Tel no and e-mail

Facilities management contractor name Address Address Post code Tel no and e-mail

Maintenance contractor name Address Address Post code Tel no and e-mail

Other Other

Other Other

Building Log BookDo not remove from Designated location

Building name Page 725 Prepared by Name and date

copy 2006 CIBSE

5 Commissioning handover and compliance (Not more than two pages if possible) Part L requires the building services systems be commissioned so that the system(s) and their controls are left in working order and can operate efficiently Use CIBSE Commissioning Code M to develop a commissioning plan and ensure that the systems operate correctly Commissioning overview Insert a brief summary of the general arrangement for commissioning eg who carried the work out and when Indicate the commissioning procedure that was followed in particular whether any CIBSE commissioning codes were followed CIBSE Commissioning Code Followed (YesNo) Certificate included in

appendix (YesNo) Code M Commissioning management Code A Air distribution systems Code B Boilers Code C Automatic controls Code L Lighting Code R Refrigerating systems Code W Water distribution systems

Commissioning results

Commissioning period [date] to [date] Signed 1

Wer

e th

e sy

stem

and

its

con

trol

s in

stal

led

as s

how

n in

the

desi

gn

draw

ings

(Y

esN

o)

2 D

id o

pera

tion

mee

t the

de

sign

spe

cific

atio

ns

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 D

id th

e sy

stem

ope

rate

ef

ficie

ntly

in a

ll m

odes

(Y

esN

o)

Commentsproblems Where the answer is NO indicate any commissioning problems or significant changes that have been made to the designs during (or as a result of) installationcommissioning or any value engineering exercises including any significant commissioning failures and remedial work that took place

Lighting

Fans

Air handling units

Pumps

Mechanical cooling

Heat rejection

Space heating

HWS

Central BMS

etc

Where appropriate this section should also cover daylighting natural ventilation and passive cooling systems

Building Log BookDo not remove from Designated location

Building name Page 825 Prepared by Name and date

copy 2006 CIBSE

Air infiltration Insert a summary description of any building air pressure test showing the measured air permeability of the building fabric against the necessary target in Part L2 This should also include test failure results any measures to redress a test failure and any re-test results

Insulation continuity Insert a summary description of any infra-red thermography investigations to confirm thermal continuity of insulation in the building fabric for compliance with Part L2 This should also include test failure results any measures to redress a test failure and any re-test results If thermography is not used a report should be obtained from a suitable qualified person and a copy attached to this log book Handover Insert a summary description of the handover process that took place

Handover took place on [date] End of defects liability period [date] The handover procedure was managed by [name] (Lead designer) The documents handed over are listed in section 3

Building Log BookDo not remove from Designated location

Building name Page 925 Prepared by Name and date

copy 2006 CIBSE

6 Overall building design (Not more than three pages if possible) General description of building Insert a summary description of the building type its main uses and types of occupancy etc Client requirements Insert a summary description of the original client requirements eg lsquoExternal and internal design conditions air change rates energy targets installed power density targets etcrsquo Conceptual design Insert a summary description of the overall building design philosophy at a conceptual level including management and operation of the plant eg lsquoNaturally ventilated cross ventilation between the two main facades via openable windows with daylight penetration to 6 m and daylight responsive controlsrsquo This description should include passive features eg atria ventilation stacks and light wells alongside more active features eg mechanical air handling CHP etc showing the interaction between these elements

Diagrams Insert one or two simple diagrams to illustrate the overall building design philosophy One might show the overall philosophy in terms of key architectural features eg passive stack ventilation daylighting devices and shading elements Another might show the overall philosophy in terms of key services eg heatingcooling and ventilation strategies indicating fuels used and main plant Where appropriate these should include arrows showing intended movement of heat cooling light and air Add a reference to the more detailed information given in the system sheets starting on page 14 If possible one single overview diagram is preferable as the objective is a summary of the whole design intent (ie how the building is intended to work) It is essential to show the interaction between the different elements of the design philosophy

Building Log BookDo not remove from Designated location

Building name Page 1025 Prepared by Name and date

copy 2006 CIBSE

Special design features Insert a summary description of any special design features eg atria shading etc Insert a summary description of the any special energy efficiency features eg CHP renewables heat recovery etc Design assessment Where appropriate insert a summary description of the Part L2 design assessment of carbon emissions method or whole building method Key interactions Insert a summary description of the important interactions between different parts of the design eg lighting and cooling daylighting and artificial lighting cooling and ventilation Benefits and limitations of the design Insert a summary description of the main benefits of the design eg operability flexibility maintainability sustainability energy efficiency Insert a summary description of the main limitations of the design eg maximum occupancy and occupancy density no smoking policy winter under-heating and summer overheating Key lsquodos and donrsquotsrsquo Key lsquodos and donrsquotsrsquo anticipating what the operator may do that could damage the overall design intent eg installing partitioning that could damage the ventilation strategy

Do (1) hellip (2) hellip (3) hellip Donrsquot (1) hellip (2) hellip (3) hellip

Building Log BookDo not remove from Designated location

Building name Page 1125 Prepared by Name and date

copy 2006 CIBSE

7 Summary of areas and occupancy (Not more than one page of text plus one simple plan per floor) Occupancy and activities The total number of occupants in the building is [number] (based on core hours of use)

Main occupied areas Weekday hours

Saturday hours

Sunday hours

Total hoursweek

Flextime (YesNo)

Late working sometimes (YesNo)

No of occupants

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Insert a summary of the main activities in each different zone of the building Insert a summary of the likely occupancy patterns including numbers of people and occupancy periods Floor areas The total floor area of the building is [area] m2 (based on gross floor area)

of total area by servicing system Total

Total area (m2)

Area type Untreated ()

Naturally ventilated

()

Mechanically ventilated

()

Mixed mode ()

Heating and cooling only ()

Full air conditioning with humidity

control ()

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Total 100

Total area (m2)

Fill in a list of floor area types in column 1 broken down by main activity areaszones Complete the matrix to indicate the percentage of each area type that is untreated naturally ventilated air conditioned etc Check this adds up to 100 and to the total floor area both horizontally and vertically Ensure that floor areas are accurate as they are used in the energy performance calculations It is preferable to use gross floor areas in m2 and then indicate untreated and special areas as separate area types Tenancies Where the building is divided into tenancies insert a list of the tenancies with their floor areas and a simple marked up floor plan to indicate their location Where sub-metering is used for billing then the location of meters should be indicated

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 625 Prepared by Name and date

copy 2006 CIBSE

4 Main contacts Emergency contact name 1 Address Address Post code Tel no and e-mail

Emergency contact name 2 Address Address Post code Tel no and e-mail

Electricity emergency contact name Address Address Post code Tel no and e-mail

Gas emergency contact name Address Address Post code Tel no and e-mail

Lead designer contact name Address Address Post code Tel no and e-mail

Building services design contact nameAddress Address Post code Tel no and e-mail

Lead contractor contact name Address Address Post code Tel no and e-mail

Main subcontractor contact name Address Address Post code Tel no and e-mail

Commissioning agent name Address Address Post code Tel no and e-mail

Services installer subcontractor name Address Address Post code Tel no and e-mail

Planning supervisor name Address Address Post code Tel no and e-mail

OampM and log book author name Address Address Post code Tel no and e-mail

Facilities management contractor name Address Address Post code Tel no and e-mail

Maintenance contractor name Address Address Post code Tel no and e-mail

Other Other

Other Other

Building Log BookDo not remove from Designated location

Building name Page 725 Prepared by Name and date

copy 2006 CIBSE

5 Commissioning handover and compliance (Not more than two pages if possible) Part L requires the building services systems be commissioned so that the system(s) and their controls are left in working order and can operate efficiently Use CIBSE Commissioning Code M to develop a commissioning plan and ensure that the systems operate correctly Commissioning overview Insert a brief summary of the general arrangement for commissioning eg who carried the work out and when Indicate the commissioning procedure that was followed in particular whether any CIBSE commissioning codes were followed CIBSE Commissioning Code Followed (YesNo) Certificate included in

appendix (YesNo) Code M Commissioning management Code A Air distribution systems Code B Boilers Code C Automatic controls Code L Lighting Code R Refrigerating systems Code W Water distribution systems

Commissioning results

Commissioning period [date] to [date] Signed 1

Wer

e th

e sy

stem

and

its

con

trol

s in

stal

led

as s

how

n in

the

desi

gn

draw

ings

(Y

esN

o)

2 D

id o

pera

tion

mee

t the

de

sign

spe

cific

atio

ns

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 D

id th

e sy

stem

ope

rate

ef

ficie

ntly

in a

ll m

odes

(Y

esN

o)

Commentsproblems Where the answer is NO indicate any commissioning problems or significant changes that have been made to the designs during (or as a result of) installationcommissioning or any value engineering exercises including any significant commissioning failures and remedial work that took place

Lighting

Fans

Air handling units

Pumps

Mechanical cooling

Heat rejection

Space heating

HWS

Central BMS

etc

Where appropriate this section should also cover daylighting natural ventilation and passive cooling systems

Building Log BookDo not remove from Designated location

Building name Page 825 Prepared by Name and date

copy 2006 CIBSE

Air infiltration Insert a summary description of any building air pressure test showing the measured air permeability of the building fabric against the necessary target in Part L2 This should also include test failure results any measures to redress a test failure and any re-test results

Insulation continuity Insert a summary description of any infra-red thermography investigations to confirm thermal continuity of insulation in the building fabric for compliance with Part L2 This should also include test failure results any measures to redress a test failure and any re-test results If thermography is not used a report should be obtained from a suitable qualified person and a copy attached to this log book Handover Insert a summary description of the handover process that took place

Handover took place on [date] End of defects liability period [date] The handover procedure was managed by [name] (Lead designer) The documents handed over are listed in section 3

Building Log BookDo not remove from Designated location

Building name Page 925 Prepared by Name and date

copy 2006 CIBSE

6 Overall building design (Not more than three pages if possible) General description of building Insert a summary description of the building type its main uses and types of occupancy etc Client requirements Insert a summary description of the original client requirements eg lsquoExternal and internal design conditions air change rates energy targets installed power density targets etcrsquo Conceptual design Insert a summary description of the overall building design philosophy at a conceptual level including management and operation of the plant eg lsquoNaturally ventilated cross ventilation between the two main facades via openable windows with daylight penetration to 6 m and daylight responsive controlsrsquo This description should include passive features eg atria ventilation stacks and light wells alongside more active features eg mechanical air handling CHP etc showing the interaction between these elements

Diagrams Insert one or two simple diagrams to illustrate the overall building design philosophy One might show the overall philosophy in terms of key architectural features eg passive stack ventilation daylighting devices and shading elements Another might show the overall philosophy in terms of key services eg heatingcooling and ventilation strategies indicating fuels used and main plant Where appropriate these should include arrows showing intended movement of heat cooling light and air Add a reference to the more detailed information given in the system sheets starting on page 14 If possible one single overview diagram is preferable as the objective is a summary of the whole design intent (ie how the building is intended to work) It is essential to show the interaction between the different elements of the design philosophy

Building Log BookDo not remove from Designated location

Building name Page 1025 Prepared by Name and date

copy 2006 CIBSE

Special design features Insert a summary description of any special design features eg atria shading etc Insert a summary description of the any special energy efficiency features eg CHP renewables heat recovery etc Design assessment Where appropriate insert a summary description of the Part L2 design assessment of carbon emissions method or whole building method Key interactions Insert a summary description of the important interactions between different parts of the design eg lighting and cooling daylighting and artificial lighting cooling and ventilation Benefits and limitations of the design Insert a summary description of the main benefits of the design eg operability flexibility maintainability sustainability energy efficiency Insert a summary description of the main limitations of the design eg maximum occupancy and occupancy density no smoking policy winter under-heating and summer overheating Key lsquodos and donrsquotsrsquo Key lsquodos and donrsquotsrsquo anticipating what the operator may do that could damage the overall design intent eg installing partitioning that could damage the ventilation strategy

Do (1) hellip (2) hellip (3) hellip Donrsquot (1) hellip (2) hellip (3) hellip

Building Log BookDo not remove from Designated location

Building name Page 1125 Prepared by Name and date

copy 2006 CIBSE

7 Summary of areas and occupancy (Not more than one page of text plus one simple plan per floor) Occupancy and activities The total number of occupants in the building is [number] (based on core hours of use)

Main occupied areas Weekday hours

Saturday hours

Sunday hours

Total hoursweek

Flextime (YesNo)

Late working sometimes (YesNo)

No of occupants

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Insert a summary of the main activities in each different zone of the building Insert a summary of the likely occupancy patterns including numbers of people and occupancy periods Floor areas The total floor area of the building is [area] m2 (based on gross floor area)

of total area by servicing system Total

Total area (m2)

Area type Untreated ()

Naturally ventilated

()

Mechanically ventilated

()

Mixed mode ()

Heating and cooling only ()

Full air conditioning with humidity

control ()

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Total 100

Total area (m2)

Fill in a list of floor area types in column 1 broken down by main activity areaszones Complete the matrix to indicate the percentage of each area type that is untreated naturally ventilated air conditioned etc Check this adds up to 100 and to the total floor area both horizontally and vertically Ensure that floor areas are accurate as they are used in the energy performance calculations It is preferable to use gross floor areas in m2 and then indicate untreated and special areas as separate area types Tenancies Where the building is divided into tenancies insert a list of the tenancies with their floor areas and a simple marked up floor plan to indicate their location Where sub-metering is used for billing then the location of meters should be indicated

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 725 Prepared by Name and date

copy 2006 CIBSE

5 Commissioning handover and compliance (Not more than two pages if possible) Part L requires the building services systems be commissioned so that the system(s) and their controls are left in working order and can operate efficiently Use CIBSE Commissioning Code M to develop a commissioning plan and ensure that the systems operate correctly Commissioning overview Insert a brief summary of the general arrangement for commissioning eg who carried the work out and when Indicate the commissioning procedure that was followed in particular whether any CIBSE commissioning codes were followed CIBSE Commissioning Code Followed (YesNo) Certificate included in

appendix (YesNo) Code M Commissioning management Code A Air distribution systems Code B Boilers Code C Automatic controls Code L Lighting Code R Refrigerating systems Code W Water distribution systems

Commissioning results

Commissioning period [date] to [date] Signed 1

Wer

e th

e sy

stem

and

its

con

trol

s in

stal

led

as s

how

n in

the

desi

gn

draw

ings

(Y

esN

o)

2 D

id o

pera

tion

mee

t the

de

sign

spe

cific

atio

ns

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 D

id th

e sy

stem

ope

rate

ef

ficie

ntly

in a

ll m

odes

(Y

esN

o)

Commentsproblems Where the answer is NO indicate any commissioning problems or significant changes that have been made to the designs during (or as a result of) installationcommissioning or any value engineering exercises including any significant commissioning failures and remedial work that took place

Lighting

Fans

Air handling units

Pumps

Mechanical cooling

Heat rejection

Space heating

HWS

Central BMS

etc

Where appropriate this section should also cover daylighting natural ventilation and passive cooling systems

Building Log BookDo not remove from Designated location

Building name Page 825 Prepared by Name and date

copy 2006 CIBSE

Air infiltration Insert a summary description of any building air pressure test showing the measured air permeability of the building fabric against the necessary target in Part L2 This should also include test failure results any measures to redress a test failure and any re-test results

Insulation continuity Insert a summary description of any infra-red thermography investigations to confirm thermal continuity of insulation in the building fabric for compliance with Part L2 This should also include test failure results any measures to redress a test failure and any re-test results If thermography is not used a report should be obtained from a suitable qualified person and a copy attached to this log book Handover Insert a summary description of the handover process that took place

Handover took place on [date] End of defects liability period [date] The handover procedure was managed by [name] (Lead designer) The documents handed over are listed in section 3

Building Log BookDo not remove from Designated location

Building name Page 925 Prepared by Name and date

copy 2006 CIBSE

6 Overall building design (Not more than three pages if possible) General description of building Insert a summary description of the building type its main uses and types of occupancy etc Client requirements Insert a summary description of the original client requirements eg lsquoExternal and internal design conditions air change rates energy targets installed power density targets etcrsquo Conceptual design Insert a summary description of the overall building design philosophy at a conceptual level including management and operation of the plant eg lsquoNaturally ventilated cross ventilation between the two main facades via openable windows with daylight penetration to 6 m and daylight responsive controlsrsquo This description should include passive features eg atria ventilation stacks and light wells alongside more active features eg mechanical air handling CHP etc showing the interaction between these elements

Diagrams Insert one or two simple diagrams to illustrate the overall building design philosophy One might show the overall philosophy in terms of key architectural features eg passive stack ventilation daylighting devices and shading elements Another might show the overall philosophy in terms of key services eg heatingcooling and ventilation strategies indicating fuels used and main plant Where appropriate these should include arrows showing intended movement of heat cooling light and air Add a reference to the more detailed information given in the system sheets starting on page 14 If possible one single overview diagram is preferable as the objective is a summary of the whole design intent (ie how the building is intended to work) It is essential to show the interaction between the different elements of the design philosophy

Building Log BookDo not remove from Designated location

Building name Page 1025 Prepared by Name and date

copy 2006 CIBSE

Special design features Insert a summary description of any special design features eg atria shading etc Insert a summary description of the any special energy efficiency features eg CHP renewables heat recovery etc Design assessment Where appropriate insert a summary description of the Part L2 design assessment of carbon emissions method or whole building method Key interactions Insert a summary description of the important interactions between different parts of the design eg lighting and cooling daylighting and artificial lighting cooling and ventilation Benefits and limitations of the design Insert a summary description of the main benefits of the design eg operability flexibility maintainability sustainability energy efficiency Insert a summary description of the main limitations of the design eg maximum occupancy and occupancy density no smoking policy winter under-heating and summer overheating Key lsquodos and donrsquotsrsquo Key lsquodos and donrsquotsrsquo anticipating what the operator may do that could damage the overall design intent eg installing partitioning that could damage the ventilation strategy

Do (1) hellip (2) hellip (3) hellip Donrsquot (1) hellip (2) hellip (3) hellip

Building Log BookDo not remove from Designated location

Building name Page 1125 Prepared by Name and date

copy 2006 CIBSE

7 Summary of areas and occupancy (Not more than one page of text plus one simple plan per floor) Occupancy and activities The total number of occupants in the building is [number] (based on core hours of use)

Main occupied areas Weekday hours

Saturday hours

Sunday hours

Total hoursweek

Flextime (YesNo)

Late working sometimes (YesNo)

No of occupants

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Insert a summary of the main activities in each different zone of the building Insert a summary of the likely occupancy patterns including numbers of people and occupancy periods Floor areas The total floor area of the building is [area] m2 (based on gross floor area)

of total area by servicing system Total

Total area (m2)

Area type Untreated ()

Naturally ventilated

()

Mechanically ventilated

()

Mixed mode ()

Heating and cooling only ()

Full air conditioning with humidity

control ()

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Total 100

Total area (m2)

Fill in a list of floor area types in column 1 broken down by main activity areaszones Complete the matrix to indicate the percentage of each area type that is untreated naturally ventilated air conditioned etc Check this adds up to 100 and to the total floor area both horizontally and vertically Ensure that floor areas are accurate as they are used in the energy performance calculations It is preferable to use gross floor areas in m2 and then indicate untreated and special areas as separate area types Tenancies Where the building is divided into tenancies insert a list of the tenancies with their floor areas and a simple marked up floor plan to indicate their location Where sub-metering is used for billing then the location of meters should be indicated

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 825 Prepared by Name and date

copy 2006 CIBSE

Air infiltration Insert a summary description of any building air pressure test showing the measured air permeability of the building fabric against the necessary target in Part L2 This should also include test failure results any measures to redress a test failure and any re-test results

Insulation continuity Insert a summary description of any infra-red thermography investigations to confirm thermal continuity of insulation in the building fabric for compliance with Part L2 This should also include test failure results any measures to redress a test failure and any re-test results If thermography is not used a report should be obtained from a suitable qualified person and a copy attached to this log book Handover Insert a summary description of the handover process that took place

Handover took place on [date] End of defects liability period [date] The handover procedure was managed by [name] (Lead designer) The documents handed over are listed in section 3

Building Log BookDo not remove from Designated location

Building name Page 925 Prepared by Name and date

copy 2006 CIBSE

6 Overall building design (Not more than three pages if possible) General description of building Insert a summary description of the building type its main uses and types of occupancy etc Client requirements Insert a summary description of the original client requirements eg lsquoExternal and internal design conditions air change rates energy targets installed power density targets etcrsquo Conceptual design Insert a summary description of the overall building design philosophy at a conceptual level including management and operation of the plant eg lsquoNaturally ventilated cross ventilation between the two main facades via openable windows with daylight penetration to 6 m and daylight responsive controlsrsquo This description should include passive features eg atria ventilation stacks and light wells alongside more active features eg mechanical air handling CHP etc showing the interaction between these elements

Diagrams Insert one or two simple diagrams to illustrate the overall building design philosophy One might show the overall philosophy in terms of key architectural features eg passive stack ventilation daylighting devices and shading elements Another might show the overall philosophy in terms of key services eg heatingcooling and ventilation strategies indicating fuels used and main plant Where appropriate these should include arrows showing intended movement of heat cooling light and air Add a reference to the more detailed information given in the system sheets starting on page 14 If possible one single overview diagram is preferable as the objective is a summary of the whole design intent (ie how the building is intended to work) It is essential to show the interaction between the different elements of the design philosophy

Building Log BookDo not remove from Designated location

Building name Page 1025 Prepared by Name and date

copy 2006 CIBSE

Special design features Insert a summary description of any special design features eg atria shading etc Insert a summary description of the any special energy efficiency features eg CHP renewables heat recovery etc Design assessment Where appropriate insert a summary description of the Part L2 design assessment of carbon emissions method or whole building method Key interactions Insert a summary description of the important interactions between different parts of the design eg lighting and cooling daylighting and artificial lighting cooling and ventilation Benefits and limitations of the design Insert a summary description of the main benefits of the design eg operability flexibility maintainability sustainability energy efficiency Insert a summary description of the main limitations of the design eg maximum occupancy and occupancy density no smoking policy winter under-heating and summer overheating Key lsquodos and donrsquotsrsquo Key lsquodos and donrsquotsrsquo anticipating what the operator may do that could damage the overall design intent eg installing partitioning that could damage the ventilation strategy

Do (1) hellip (2) hellip (3) hellip Donrsquot (1) hellip (2) hellip (3) hellip

Building Log BookDo not remove from Designated location

Building name Page 1125 Prepared by Name and date

copy 2006 CIBSE

7 Summary of areas and occupancy (Not more than one page of text plus one simple plan per floor) Occupancy and activities The total number of occupants in the building is [number] (based on core hours of use)

Main occupied areas Weekday hours

Saturday hours

Sunday hours

Total hoursweek

Flextime (YesNo)

Late working sometimes (YesNo)

No of occupants

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Insert a summary of the main activities in each different zone of the building Insert a summary of the likely occupancy patterns including numbers of people and occupancy periods Floor areas The total floor area of the building is [area] m2 (based on gross floor area)

of total area by servicing system Total

Total area (m2)

Area type Untreated ()

Naturally ventilated

()

Mechanically ventilated

()

Mixed mode ()

Heating and cooling only ()

Full air conditioning with humidity

control ()

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Total 100

Total area (m2)

Fill in a list of floor area types in column 1 broken down by main activity areaszones Complete the matrix to indicate the percentage of each area type that is untreated naturally ventilated air conditioned etc Check this adds up to 100 and to the total floor area both horizontally and vertically Ensure that floor areas are accurate as they are used in the energy performance calculations It is preferable to use gross floor areas in m2 and then indicate untreated and special areas as separate area types Tenancies Where the building is divided into tenancies insert a list of the tenancies with their floor areas and a simple marked up floor plan to indicate their location Where sub-metering is used for billing then the location of meters should be indicated

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 925 Prepared by Name and date

copy 2006 CIBSE

6 Overall building design (Not more than three pages if possible) General description of building Insert a summary description of the building type its main uses and types of occupancy etc Client requirements Insert a summary description of the original client requirements eg lsquoExternal and internal design conditions air change rates energy targets installed power density targets etcrsquo Conceptual design Insert a summary description of the overall building design philosophy at a conceptual level including management and operation of the plant eg lsquoNaturally ventilated cross ventilation between the two main facades via openable windows with daylight penetration to 6 m and daylight responsive controlsrsquo This description should include passive features eg atria ventilation stacks and light wells alongside more active features eg mechanical air handling CHP etc showing the interaction between these elements

Diagrams Insert one or two simple diagrams to illustrate the overall building design philosophy One might show the overall philosophy in terms of key architectural features eg passive stack ventilation daylighting devices and shading elements Another might show the overall philosophy in terms of key services eg heatingcooling and ventilation strategies indicating fuels used and main plant Where appropriate these should include arrows showing intended movement of heat cooling light and air Add a reference to the more detailed information given in the system sheets starting on page 14 If possible one single overview diagram is preferable as the objective is a summary of the whole design intent (ie how the building is intended to work) It is essential to show the interaction between the different elements of the design philosophy

Building Log BookDo not remove from Designated location

Building name Page 1025 Prepared by Name and date

copy 2006 CIBSE

Special design features Insert a summary description of any special design features eg atria shading etc Insert a summary description of the any special energy efficiency features eg CHP renewables heat recovery etc Design assessment Where appropriate insert a summary description of the Part L2 design assessment of carbon emissions method or whole building method Key interactions Insert a summary description of the important interactions between different parts of the design eg lighting and cooling daylighting and artificial lighting cooling and ventilation Benefits and limitations of the design Insert a summary description of the main benefits of the design eg operability flexibility maintainability sustainability energy efficiency Insert a summary description of the main limitations of the design eg maximum occupancy and occupancy density no smoking policy winter under-heating and summer overheating Key lsquodos and donrsquotsrsquo Key lsquodos and donrsquotsrsquo anticipating what the operator may do that could damage the overall design intent eg installing partitioning that could damage the ventilation strategy

Do (1) hellip (2) hellip (3) hellip Donrsquot (1) hellip (2) hellip (3) hellip

Building Log BookDo not remove from Designated location

Building name Page 1125 Prepared by Name and date

copy 2006 CIBSE

7 Summary of areas and occupancy (Not more than one page of text plus one simple plan per floor) Occupancy and activities The total number of occupants in the building is [number] (based on core hours of use)

Main occupied areas Weekday hours

Saturday hours

Sunday hours

Total hoursweek

Flextime (YesNo)

Late working sometimes (YesNo)

No of occupants

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Insert a summary of the main activities in each different zone of the building Insert a summary of the likely occupancy patterns including numbers of people and occupancy periods Floor areas The total floor area of the building is [area] m2 (based on gross floor area)

of total area by servicing system Total

Total area (m2)

Area type Untreated ()

Naturally ventilated

()

Mechanically ventilated

()

Mixed mode ()

Heating and cooling only ()

Full air conditioning with humidity

control ()

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Total 100

Total area (m2)

Fill in a list of floor area types in column 1 broken down by main activity areaszones Complete the matrix to indicate the percentage of each area type that is untreated naturally ventilated air conditioned etc Check this adds up to 100 and to the total floor area both horizontally and vertically Ensure that floor areas are accurate as they are used in the energy performance calculations It is preferable to use gross floor areas in m2 and then indicate untreated and special areas as separate area types Tenancies Where the building is divided into tenancies insert a list of the tenancies with their floor areas and a simple marked up floor plan to indicate their location Where sub-metering is used for billing then the location of meters should be indicated

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 1025 Prepared by Name and date

copy 2006 CIBSE

Special design features Insert a summary description of any special design features eg atria shading etc Insert a summary description of the any special energy efficiency features eg CHP renewables heat recovery etc Design assessment Where appropriate insert a summary description of the Part L2 design assessment of carbon emissions method or whole building method Key interactions Insert a summary description of the important interactions between different parts of the design eg lighting and cooling daylighting and artificial lighting cooling and ventilation Benefits and limitations of the design Insert a summary description of the main benefits of the design eg operability flexibility maintainability sustainability energy efficiency Insert a summary description of the main limitations of the design eg maximum occupancy and occupancy density no smoking policy winter under-heating and summer overheating Key lsquodos and donrsquotsrsquo Key lsquodos and donrsquotsrsquo anticipating what the operator may do that could damage the overall design intent eg installing partitioning that could damage the ventilation strategy

Do (1) hellip (2) hellip (3) hellip Donrsquot (1) hellip (2) hellip (3) hellip

Building Log BookDo not remove from Designated location

Building name Page 1125 Prepared by Name and date

copy 2006 CIBSE

7 Summary of areas and occupancy (Not more than one page of text plus one simple plan per floor) Occupancy and activities The total number of occupants in the building is [number] (based on core hours of use)

Main occupied areas Weekday hours

Saturday hours

Sunday hours

Total hoursweek

Flextime (YesNo)

Late working sometimes (YesNo)

No of occupants

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Insert a summary of the main activities in each different zone of the building Insert a summary of the likely occupancy patterns including numbers of people and occupancy periods Floor areas The total floor area of the building is [area] m2 (based on gross floor area)

of total area by servicing system Total

Total area (m2)

Area type Untreated ()

Naturally ventilated

()

Mechanically ventilated

()

Mixed mode ()

Heating and cooling only ()

Full air conditioning with humidity

control ()

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Total 100

Total area (m2)

Fill in a list of floor area types in column 1 broken down by main activity areaszones Complete the matrix to indicate the percentage of each area type that is untreated naturally ventilated air conditioned etc Check this adds up to 100 and to the total floor area both horizontally and vertically Ensure that floor areas are accurate as they are used in the energy performance calculations It is preferable to use gross floor areas in m2 and then indicate untreated and special areas as separate area types Tenancies Where the building is divided into tenancies insert a list of the tenancies with their floor areas and a simple marked up floor plan to indicate their location Where sub-metering is used for billing then the location of meters should be indicated

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 1125 Prepared by Name and date

copy 2006 CIBSE

7 Summary of areas and occupancy (Not more than one page of text plus one simple plan per floor) Occupancy and activities The total number of occupants in the building is [number] (based on core hours of use)

Main occupied areas Weekday hours

Saturday hours

Sunday hours

Total hoursweek

Flextime (YesNo)

Late working sometimes (YesNo)

No of occupants

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Insert a summary of the main activities in each different zone of the building Insert a summary of the likely occupancy patterns including numbers of people and occupancy periods Floor areas The total floor area of the building is [area] m2 (based on gross floor area)

of total area by servicing system Total

Total area (m2)

Area type Untreated ()

Naturally ventilated

()

Mechanically ventilated

()

Mixed mode ()

Heating and cooling only ()

Full air conditioning with humidity

control ()

Area type 1 Log book author to complete

Area type 2

Area type 3

Etc

Total 100

Total area (m2)

Fill in a list of floor area types in column 1 broken down by main activity areaszones Complete the matrix to indicate the percentage of each area type that is untreated naturally ventilated air conditioned etc Check this adds up to 100 and to the total floor area both horizontally and vertically Ensure that floor areas are accurate as they are used in the energy performance calculations It is preferable to use gross floor areas in m2 and then indicate untreated and special areas as separate area types Tenancies Where the building is divided into tenancies insert a list of the tenancies with their floor areas and a simple marked up floor plan to indicate their location Where sub-metering is used for billing then the location of meters should be indicated

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 1225 Prepared by Name and date

copy 2006 CIBSE

Separately managed and special areas Highlight areas of the building used for special activities that are atypical of the main building use or where areas are separately managed eg restaurant or conference facilities in an office or leisure facilitiesswimming pool in a hotel Insert details of the facility and any special management arrangements or occupant requirements relevant to the operation and maintenance of the building services in that area Include these in the table of areas above Ensure that occupant information is provided for each of these specialseparately managed areas under section 10 Floor plans Include small simplified schematics of floor plans eg one per floor Each one might be an A4 page These should highlight the location of all main plant rooms including incoming energywater meters the main building operations room and the location of the any BMS central supervisor Main entrances lifts and special areas like car parks and restaurants should also be shown

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 1325 Prepared by Name and date

copy 2006 CIBSE

8 Summary of main building services plant (Not more than one summary page and one page per main system) Insert a summary list of main energy using plant eg boilers water heaters chillers fans pumps etc with plant capacities and location In larger buildings this might be restricted to items above say 5 kW in order to keep the list concise whereas smaller buildings might include everything down to say 05 kW Most plant is rated by its output but some plant can be rated by input Main plant items above [power] kW are shown below The asset register [title and location] provides further detail Main plant Location Input

(kW) Output

(kW)

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 1425 Prepared by Name and date

copy 2006 CIBSE

System sheet SYSTEM NAME Each sheet should show one main end-use system beginning with the energy (electricity and gas) distribution systems then passive ventilation natural daylighting followed by more active systems eg heating HWS mechanical ventilation cooling lighting etc

NAME system schematic Overall schematic of main systemfeatureplant and distribution system indicating areas supplied and main control zones For example Electricity distribution insert a simple diagram (or description) of the overall electricity distribution system(s) indicating metering transformers standby generation etc Heating insert a simple diagram (or description) of the overall heating system(s) indicating fuels used main plantsystems heating flows and overall controls Cooling insert a simple diagram (or description) of the overall cooling system(s) indicating refrigerant fuels used main plant cooling flows and overall controls Ventilation insert a simple diagram (or description) of the overall passiveactive ventilation system(s) indicating main air flows window operation and any fuels used main plant and overall controls Lightingdaylighting insert a simple diagram (or description) of the overall daylighting and artificial lighting systems indicating main types of lighting used daylight mechanisms and overall controls

Location insert location of the main plant related to this system and the system controls Record drawings insert no more than two references to key record drawings that provide an overview of this system Plant capacity insert installed plant capacity and installed power density (Wm2) based on the gross floor area Control settings insert a summary of the recommended control settings eg onoff times temperature set points or lux levels etc Safety features insert a brief description of any key safety features (or hazards) related to this system eg high limit and safety thermostat settings Energywater saving features Insert a brief description of any key energywater saving features related to this system eg heat recovery underfloor heating to promote efficiency of condensing boilers etc Tips for good operation Insert any lsquodos and donrsquotsrsquo and hints that will ensure good efficient operation

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 1525 Prepared by Name and date

copy 2006 CIBSE

9 Overview of controlsBMS (Not more than two pages) Part L sets minimum requirements for controls mdash ensure that these details meet these requirements

ControlsBMS layout Insert an overall schematic of the BMS (or main controls) indicating central supervisor outstations and their locations Where possible this should indicate the numbertype of connected points to indicate possible expansion

BMS software hierarchy Insert an overall tree diagram of BMS software indicating upper levels (pages) of the system eg plant rooms or floor by floor views Where possible this should indicate the main plant being controlledmonitored This should show the user what plant is connected and how to move between the main screens on the central supervisor

Main controlmonitoring functions Insert a summary of the main functions of the BMScontrols

bull what plant is controlled

bull what plant is monitored only

bull what plant has alarm functions to indicate limits have been exceeded

bull what energywater meters are linked to BMS Authorised personnel Insert a list of personnel with access to BMScontrols indicating what password level they have access to

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 1625 Prepared by Name and date

copy 2006 CIBSE

10 Occupant information (This information should be photocopied and passed on to the building occupants particularly new

staff members) (Not more than two pages) Your working environment In order to achieve a good working environment it is important that you understand how to control the building services in your space Insert a brief description of how their space is serviced eg air conditioned or naturally ventilated with openable windows automatic lighting controls related to daylight etc Insert a brief and simple description of how occupants should use the building and control their own space Where appropriate this information should also be provided specifically for staff in separately managed areas like restaurants kitchens conference suites etc and for staff in areas that are not typical of the main building use eg leisureswimming facilities in hotels This information should also be provided for public areas like hotel bedrooms meeting rooms and foyers Use the log book to encourage the facilities manager to display a copy of this information in these public areas Heating insert a brief description of the heating distribution system eg lsquoRadiators divided into zones controlled by local thermostats located on the central pillars These should be set to around 21 degCrsquo Ventilationair conditioning (where appropriate) insert a brief description of the air conditioning distribution system eg lsquoGrilles in the ceiling provide cool or hot air depending on how you set the thermostat air is extracted at low level grilles in the wallrsquo Lighting insert a brief description of the lighting distribution system eg lsquoFluorescent lighting controlled by manual switches located on the pillars with automatic dimming controls related to daylight near the windows Only switch the lights on that you need and make sure you switch them off before you leaversquo Windows insert a brief description of the windows eg lsquoSimple top hinged openable windows with a security lock These allow air flow across the office in summer but should be kept closed during winterrsquo Shading insert a brief description of the shading eg lsquoSimple internal blinds can be used to prevent glare although these are unlikely to prevent over-heating on sunny daysrsquo Office equipment insert a brief description of how to control office equipment

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 1725 Prepared by Name and date

copy 2006 CIBSE

Simple energy lsquodos and donrsquotsrsquo

bull Avoid blocking radiators or ventilation grilles with furniture and books as this will result in a lack of heatingventilation

bull Set thermostats to the required temperature then leave them alone Do not use them

as ONOFF switches

bull Set thermostatic radiator valves (TRVs) to the required temperature then leave them alone Do not use them as ONOFF switches If you turn these fully OFF on Friday night then donrsquot expect heat on Monday morning

bull Do not overheat or over-cool your space as this increases running costs and causes

extra emissions of CO2 into the external atmosphere contributing to global warming

bull Only switch the lights ON as and when necessary as they result in significant emissions of CO2 into the external atmosphere contributing to global warming

bull Shut windows at night for security purposes and to prevent heat loss that could make

your space cold when you come in the next day (unless part of a night cooling strategy)

bull Ensure that PCs printers etc are not left ON unnecessarily and have any energy

saving features enabled as this will prevent your space from overheating and save energy thereby reducing CO2 emissions to the external atmosphere that lead to global warming

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 1825 Prepared by Name and date

copy 2006 CIBSE

11 Metering monitoring and targeting strategy (Not more than three pages) Metering schedule The following provides a list of meters and design estimates of the likely end use consumptions See CIBSE TM39 Building energy metering for an example including how to arrive at a good metering schedule CIBSE TM22 Energy assessment and reporting method also provides a means of assessing energy use in buildings

Total estimated incoming fuel Electricity [number] kWhyr Gas [number] kWhyr Other [number] kWhyr

Energy Meters Method Meter location

Type of incoming energy

Main end-use

Estimated end-use

consumption (kWhyr)

Meter nocode

End use areasystem

circuit or tenancy to be

measured

Measurement method and calculation

where appropriate

Estimated consumption through each

meter (kWhyr)

List of meters Location

Log book author to insert design estimates here

Metering strategy

Metering strategy (in diagrammatic form) Insert the overall metering strategy (tree diagram) showing the main end uses of energy and the meters that allow these to be monitored See General Information Leaflet GIL 65 Metering energy use in new non-domestic buildings for an example including how to arrive at a good metering strategy This should indicate estimates of the energy use through each meter as predicted by the design team

Insert a brief explanation of how to use the metering strategy in particular an explanation of how to monitorbenchmark consumption annually eg lsquoRead the meters monthly and log the readings on the meter reading pro forma in a separate file From these readings add up the energy consumption for each end use for the year and log these in the building performance sectionrsquo (A meter reading pro forma template is provided on the CD-ROM associated with CIBSE TM31 The log book author should tailor this to the buildingrsquos metering strategy and provide a copy to the facilities manager See Good Practice Guide GPG 348 Building log books mdash a userrsquos guide for examples A copy is included on the CD-ROM associated with CIBSE TM31

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 1925 Prepared by Name and date

copy 2006 CIBSE

Where meters do not read in kilowatt-hours (kWmiddoth) the designerlog book author should provide appropriate conversion factors in the log book and on the tailored meter reading pro forma In particular where oil LPG or other fuels are used values for their energy content should be provided Suitable values may be obtained from CIBSE Guide F Energy efficiency in buildings Part L requires that automatic meter reading and data collection facilities should be included in buildings with floor areas greater than 1000 m2 Where appropriate describe the AMR system and its functions and relate this to the sub-metering strategy

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 2025 Prepared by Name and date

copy 2006 CIBSE

12 Building performance records (Not more than three pages) Overall annual energy performance Summary of overall annual electricity fossil fuel consumption and CO2 against simple benchmarks Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk)

Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2

Fuel

Quantity (A) (kWh)

(B) CO2 ratio

(C) (kg CO2)

(D) Actual

(kg CO2m2)

(E) Design

estimates (kg CO2m2)

(F) Good practice

benchmark (kg CO2m2)

Oil (litre) 027 Log book Log book Gas 019 author author Electricity 043 to complete to complete TOTAL

This value may change year to year due to changes in the mix of electricity generation plant Current figures are available from the Energy and Environment Helpline (0800 585 794) or wwwactionenergyorguk

Ensure that actual consumption figures do not include estimated bills and ensure they relate to a full exact 12 month period (If not then record actual and adjust by number of days missingextra) Use the total gross floor area shown in section 5 Multiply column (A) by column (B) to get (C) then divide by treated total building floor area to get (D) for comparison with benchmarks in columns (E) and (F) One overall performance indicator can be established by totalling column (D) Avoid adding column (A) as the fuels have different costs and CO2 factors

Historical building performance graph (in graphical form) Facilities manger to insert a graph of the above figures over time to track performance against a benchmark and original design estimates Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show (kg CO2m2)yr over time

CIBSE TM22 Energy assessment and reporting methodology provides software to help assess building energy performance using either a simple or a detailed approach This includes benchmarks for a variety of buildings A wider range of benchmarks is available in the series of Energy Consumption Guides produced by the Carbon Trust (wwwthecarbontrustcouk) eg ECG019 Energy use in offices and CIBSE Guide F Energy efficiency in buildings Asset amp operational ratings Insert the asset andor operational ratings taken from any energy certification process Date Asset rating Method used Operational

rating Method used

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 2125 Prepared by Name and date

copy 2006 CIBSE

Energy end use comparison Annual summary of actual metered consumption per square metre and the design teamrsquos estimates versus benchmarks broken down by main end-uses Examples of these calculations and tables are shown in Good Practice Guide GPG 348 Building log books ndash a userrsquos guide A copy is included on the CD-ROM issued with CIBSE TM31 printed copies are available from (wwwthecarbontrustcouk) Building energy performance for period from [date] to [date]

Based on a gross floor area of [number] m2 Fuel type Main end

use Actual

Metered incoming consumption ((kWh)yr)

Actual Sub-metered main end use

energy consumption ((kWhm2)yr)

Design estimates

Main end use energy

consumption (kWhm2)yr

Good practice benchmark

Main end use energy

consumption ((kWhm2)yr)

Electricity Lighting Log book Log book Fans author to author to Pumps complete complete etc Total electricity

Gas Space heating

DHW etc Total gas

Oil Other Keep the fuels separate as they have different costs and CO2 emissions

Normal end uses of energy in offices bull Heating bull Hot water bull Lighting bull Ventilation bull Pumps bull Cooling bull Humidification bull Office equipment bull Lifts and vertical

transport bull Controls and telecoms bull Local kitchens and

vending

Examples of special (ie atypical) energy uses in offices bull Dedicated computer

room or suite bull Catering kitchen and

restaurant bull Dealing rooms bull Sports and leisure

facilities bull Covered car parks bull Exterior lighting

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 2225 Prepared by Name and date

copy 2006 CIBSE

Annual graph of end use breakdown (in graphical form) Facilities manager to insert a graph of the above figures as per Energy Consumption Guide ECG 019(1) or CIBSE TM22(2) to compare end use performance with end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author may wish to provide the relevant axes to indicate what the facilities manager should plot This might be a stacked bar chart of CO2m2 versus the equivalent good practice benchmarks and design estimates

Historical graph of end-use performance (in graphical form) Facilities managers to insert a graph of the above end use figures over time to track performance against end use benchmarks etc See Good Practice Guide GPG 348(3) for examples Log book author should provide the relevant axes to indicate what the facilities manager should plot This might show a plot of each main end use (kWmiddothm2) over time

References (1) Energy efficiency in offices Energy Consumption Guide ECG019 (Carbon Trust) (2000)

(wwwthecarbontrustcouk) (2) Energy Assessment and Reporting Methodology ndash Office Assessment Method CIBSE TM22 (London

Chartered Institution of Building Services Engineers) (2003) (3) Building log books mdash a userrsquos guide GPG 348 (Carbon Trust) (2000) (wwwthecarbontrustcouk)

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 2325 Prepared by Name and date

copy 2006 CIBSE

13 Summary of maintenance (Not more than two pages) Emergency maintenance action Emergency contact name 1 Organisation Address Address Tel no e-mail address

Emergency contact name 2 Organisation Address Address Tel no e-mail address

Maintenance overview Insert a summary of the general arrangement for maintenance including any maintenance contracts and who is responsible for which main systems

Maintenance review

Review period [period] Signed

1 A

re y

ou re

ason

ably

sa

tisfie

d w

ith th

e m

aint

enan

ce o

n th

is

syst

em

(Yes

No)

2 Is

this

sys

tem

cap

able

of

wor

king

in a

ll th

e re

quire

d m

odes

(Y

esN

o)

3 If

not

is

this

due

to

poor

mai

nten

ance

(Y

esN

o)

Commentsproblems eg maintenance not carried out (give reason) Indicate any major changes to the general arrangement for maintenance including any changes in maintenance regimes or contracts

Lighting

Fans

Pumps

Cooling

Space heating

DHW

etc

Maintenanceplant failures Facilities manager to insert a summary of any major plant failures and how these relate to the maintenance regimes or contracts This should describe what happened when why and what action was taken to overcome the problem

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 2425 Prepared by Name and date

copy 2006 CIBSE

14 Results of in-use investigations (Not more than one page per investigation) Defects liability work Facilities manager to insert a summary of any major remedial work in the period between practical completion (handover) and the end of the defects liability period lsquoSea trialsrsquo Facilities manager to insert a summary of any initial lsquosea trialsrsquo which involve members of the design team monitoring and fine-tuning the building after practical completion (handover) Post occupancy evaluations Facilities manager to insert a summary of any post occupancy evaluations eg investigations of energy performance andor occupant satisfaction Surveys Facilities manager to insert a summary of results from any maintenance condition or energy surveys Inspections Summary of results of boiler or air conditioning inspections required under the EU directive lsquoEnergy Performance of Buildingsrsquo and any actions taken

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary

Building Log BookDo not remove from Designated location

Building name Page 2525 Prepared by Name and date

copy 2006 CIBSE

Appendix relevant compliance and test certificates (Summary list plus pocket to hold relevant certificates) This appendix should act as a focal point to hold copies of all relevant key certificatestest reports etc including

bull commissioning completion certificate

bull Compliance checklist signed by a an approved person eg CIBSE Low Carbon Consultant

bull EU directive lsquoEnergy Performance of Buildingsrsquo energy certificate

bull Boiler inspection certificate required under the EU directive lsquoEnergy Performance of

Buildingsrsquo

bull Air conditioning inspection certificate required under EU directive lsquoEnergy Performance of Buildingsrsquo

bull Summary of inputs and outputs to the National Calculation Method used to

determine the carbon reductions compared to the notional buildings eg inputsoutputs to SBEM or an approved dynamic simulation model Add a data disc if necessary