2009 IECC: Advanced

Energy Code Workshop – Level 201Commercial Provisions of the 2009 IECC

Instructor – Anthony C. Floyd, AIA, ICC Certified Professional, LEED AP

Workshop Outline• Scope and Application• Mandatory and Prescriptive Path

Provisions• Performance Path• ASHRAE 90.1 Compliance Option• Existing Buildings and Renovations• Case Study and Exercise• 2012 IECC, IgCC, ASHRAE 189.1 and

other codes/standards on the horizon

International Energy Conservation Code

ASHRAE Standard 90.1

International GreenConstruction Code

Building Energy Codes

Structure of IECC

Chapter 1 AdministrativeChapter 2 DefinitionsChapter 3 Climate ZonesChapter 4 Residential Energy EfficiencyChapter 5 Commercial Energy EfficiencyChapter 6 Referenced Standards

• Scope and Application– Section 501 - General

• Mandatory and Prescriptive Path Provisions– Section 502 - Building Envelope– Section 503 - Mechanical Systems– Section 504 - Service Water Heating– Section 505 - Electrical Power and Lighting

• Performance Path– Section 506 - Building Performance Path

IECC Chapter 5

Baseline: IECC and ASHRAE 90.1

Both IECC and ASHRAE 90.1 apply, ASHRAE 90.1 likely used

Both IECC and ASHRAE 90.1 apply, either used to comply

IECC applies

General Requirements Climate Zones

Figure 301.1

General Requirements Arizona Climate Zones

Commercial Compliance Process

Section 501.2 Application requires 90.1 to be used in its entirety (Envelope, Lighting, Mechanical) if used as an alternate compliance path

Must the Project Comply with the

IECC?

Comply with the Envelope

Requirements

Comply with the Mechanical/SWH

Requirements

Comply with the Lighting

Requirements

Section 502 90.1 Section 5 Sections 503 and 504 90.1 Section 6 Section 505 90.1 Section 9

Document Compliance with

the IECC

Plan Review

Inspection


• Mandatory & Prescriptive Path Provisions– Section 502 - Building Envelope– Section 503 - Mechanical Systems– Section 504 - Service Water Heating– Section 505 - Electrical Power and Lighting


IECC Chapter 5

Commercial Compliance Options

What are my Options for Complying with the IECC?Chapter 5 of the IECC General Prescriptive Approach

Use for ≤ 40% of gross wall area in vertical fenestration

Use for ≤ 3% of gross roof area in skylights

ORSection 506 Total Building Performance Approach

502 & 506

• Roof/Ceiling Assemblies• Wall Assemblies• Below Grade Walls• Floor Assemblies over unconditioned

space• Slab Edge• Vertical Fenestration and Skylights

Building Thermal Envelope

Tables separated by occupancy type Group R occupancies use “Group R” high rise column Non-Group R occupancies use “All other” column

Tables 502.1. & 502.1.2(1)


Window and door assemblies Curtain wall, storefront glazing & commercial entrance doors Sealing of the building envelope Outdoor air intakes and exhaust openings Loading dock weather-seals Vestibules Recessed lighting

502.4


Mandatory: Air Leakage

All penetrations, openings, joints and seams in the building envelope must be sealed. Materials that can be used include:

Caulking Gasketing Tapes Moisture vapor-permeable wrapping material

Sealing materials spanning joints between dissimilar materials must allow for expansion and contraction

Photo courtesy of Ken Baker, K energy

502.4.3


Mandatory: Air Leakage

Buildings ≥ 3 stories in height above grade

Class 1 motorized leakage-rated damper– Maximum leakage rate ≤

4cfm /ft2 @ 1.0 inch w.g.Buildings < 3 stories in height

Gravity (non-motorized) allowed

502.4.5

Building Thermal EnvelopeMandatory: Outdoor Air Intakes & Exhaust

Openings

Equip cargo doors and loading dock doors with weatherseals

Goal is to restrict infiltration

502.4.6

Building Thermal EnvelopeMandatory: Weatherseals

All recessed luminaires installed in the building envelope Type IC rated and sealed

with gasket or caulk between housing and interior wall or ceiling covering

Type IC rated and labeled in accordance with ASTM E 283 to allow ≤ 2.0 cfm of air movement from conditioned space to ceiling cavity

502.4.8

Building Thermal EnvelopeMandatory: Recessed Lighting

http://resourcecenter.pnl.gov/cocoon/morf/ResourceCenter/dbimages/full/847.jpg

Table 502.1.2

Building Thermal EnvelopePrescriptive

Building Thermal EnvelopePrescriptive: Opaque Elements and Assemblies

502.1.2 (U-Factor); 502.2.2(1) and (2) (R-Value)

Roof R-values and U-factor requirements are based on assembly type / insulation placement Insulation entirely above

deckMetal buildingsAttic and other

502.1.2 (U-Factor); 502.2.2(1) and (2) (R-Value)

Building Thermal EnvelopePrescriptive: Roof R-Value and U-Factor

Climate Zone 1 2 3

4Except Marine

5And

Marine 46 7 8

Insulation entirely above deck

R-15ci

R-20ci

R-20ci

R-20ci

R-20ci

R-20ci

R-20ci

R-20ci

R-20ci

R-20ci

R-20ci

R-20ci

R-25ci

R-25ci

R-25ci

R-25ci

Metal buildings (with R-5 thermal blocks)

R-19 R-19R-

13+R-13

R-13+R-13

R-13+R-13

R-19R-

13+R-13

R-19R-

13+R-13

R-19R-

13+R-19

R-19R-

13+R-19

R-19+R-19

R-11+R-19

R-19+R-10

Attic and other R-30 R-38 R-38 R-38 R-38 R-38 R-38 R-38 R-38 R-38 R-38 R-38 R-38 R-38 R-49 R-49

ROOFS

Table 502.2(1)

Building Thermal EnvelopeR-Value: Roof Insulation

Dropped CeilingDropped Ceiling

Insulation placed on Suspended Ceiling with Removable Ceiling Tiles

Will not count for code compliance

Will not comply with Section 502.4.3 – “Sealing of the building envelope”

502.2.1

Building Thermal EnvelopeR-Value: Roof Insulation

Climate Zone 1 2 3 4

Except Marine5

And Marine 4 6 7 8

Mass NR R-5.7ci

R-5.7ci

R-7.6ci

R-7.6ci

R-9.5ci

R-9.5ci

R-11.4ci

R-20ci

R-13.3ci

R-13.3ci

R-15.2ci

R-15.2ci

R-15.2ci

R-25ci

R-25ci

Metal building R-

16 R-16 R-16 R-16 R-19 R-19 R-19 R-19R-

13+5.6ci

R-13+5.6ci

R-13+5.6ci

R-13+5.6CI

R-19+5.6CI

R-19+5.6CI

R-19+5.6CI

R-19+5.6CI

Metal Framed R-

13 R-13R-

13+7.5ci

R-13+7.5ci

R-13+3.8ci

R-13+7.5ci

R-13+7.5ci

R-13+7.5ci

R-13+7.5ci

R-13+7.5ci

R-13+7.5ci

R-13+7.;5ci

R-13+7.5cfi

R-13+15.6ci

R-13+7.5ci

R-13+18.8

ci

Wood Framed & Other

R-13 R-13 R-13 R-13 R-13 R-13 R-13 R-13=

3.8ciR-

13+3.8ci

R-13+3.8ci

R-13+7.5ci

R-13+7.5ci

R-13+7.5ci

R-13+7.5ci

R-13+15.6

ci

R-13+15.6

ci

WALLS, ABOVE GRADE

Table 502.2(1)

Building Thermal EnvelopeR-Value: Wall Insulation

Walls weighing at least 35 lbs/ft2 of wall surface area

OR

25 lbs/ft2 of wall surface area if material weight is ≤ 120 lb/ft3

502.2.3, Table 502.2(1)

Building Thermal EnvelopeMass Walls

Climate Zones 1 (Group R) and 2 (all other) – Can use integral insulation instead of R-5.7 ci

Concrete block walls must comply with ASTM C 90, and

Ungrouted or partially grouted @ 32 inch. o.c. or less vertically or 48 inch. o.c. or less horizontally, and

Ungrouted cells must be filled with insulation material ≤ of 0.44 Btu-in./h-ft2 F

Climate Zone 1 “all other” No insulation required for mass walls

Table 502.2(1)

Building Thermal EnvelopeMass Walls: Concrete Masonry Units

Climate Zone

R-Value

1-2 R-163-4 except

MarineR-19

Marine 4-6 R-13+R-5.6ci7-8 R-19+R-5.6ci

Table 502.2(2)

Building Thermal EnvelopeMetal Building Walls

Cavity insulation or cavity plus continuous (ci)

Continuous insulation not broken up by framing members e.g. rigid board insulation

Table 502.2(1)

Building Thermal EnvelopeWood, Metal, Frame and Other Walls

Joist/Framing (Steel/Wood)

Insulation installed between framing

Mass Floors Materials weighing (of

floor surface area)35 lbs/ft2, or

25 lbs/ft2 if material weight is ≤ 12 lbs/ft3

Insulation installed continuously

Steel Floor Joist Systems (footnoted to Table 502.2(1))

R-38 in Climate Zones 6-8

502.2.5

Building Thermal EnvelopeFloors over Unconditioned Space

Climate Zone 1 2 3

4Except Marine

5And Marine

46 7 8

Mass NR

NR

R-6.3ci

R-8.3ci

R-6.3ci

R-8.3ci

R-10ci

R-10.4ci

R-10ci

R-12.5ci

R-12.5ci

R-14.6ci

R-15ci

R-16.7ci

R-15ci

R-16.7ci

Joist/FramingSteel/(Wood)

NR

NR R-19 R-30 R-19 R-30 R-30 R-30 R-30 R-30 R-30 R-30 R-30 R-30 R-30 R-30

Table 502.2(1), 502.2.5

FLOORS

Building Thermal EnvelopeFloors over Unconditioned Space

Climate Zone 1 2 3

4Except Marine

5And Marine 4 6 7 8

Unheated Slabs NR NR NR NR NR NR NR

R-10 for24 in. below

NRR-10 for 24 in. below

R-10 for 24 in. below


R-15 for 24. in. below




HeatedSlabs

R-7.5 for12 in. below




R-10 for24 in below












SLAB-ON GRADE FLOORS

Table 502.2(1), 502.2.6

Building Thermal EnvelopeSlab-on-Grade

Unheated slab – insulation required:

“All Other” in Climate Zones 6-8

“Group R” in Climate Zones 4-8

Heated slabs – insulation required in all Climate Zones

502.2.6

Building Thermal EnvelopeSlab-on-Grade

Climate

Zone1 2 3

4Except Marine

5And

Marine 46 7 8

Swinging

U-0.70

U-0.70

U-0.70

U-0.70

U-0.70

U-0.70

U-0.70

U-0.70

U-0.70

U-0.70

U-0.70

U-0.50

U-0.50

U-0.50

U-0.50

U-0.50

Roll-Up OrSliding

U-1.45

U-1.45

U-1.45

U-1.45

U-1.45

U-1.45

U-0.50

U-0.50

U-0.50

U-0.50

U-0.50

U-0.50

U-0.50

U-0.50

U-0.50

U-0.50

Table 502.2(1), 502.2.7

OPAQUE DOORS

Building Thermal EnvelopeOpaque Doors

Table 502.3, 502.3

Building Thermal EnvelopePrescriptive: Fenestration

Percentage of Vertical Fenestration Area to Gross Wall Area Allowed up to 40%

maximum of above grade wall

502.3.1 – Prescriptive (Max Area)

Building Thermal EnvelopePrescriptive: Maximum Vertical Fenestration

Based on above-grade wall area (gross) Includes walls between conditioned space and

unconditioned space or the great outdoors• Includes walls that are > 15% above grade

Total fenestration area (includes frame and glazing) Does not include opaque door area

502.3.1

Building Thermal EnvelopeVertical Fenestration

Two Options for Meeting the SHGC Requirements Fenestration product rated and labeled to NFRC 200, or Select default from Table 303.1.3(3)

Table 303.1.3(3)

Building Thermal EnvelopeFenestration SHGC Requirements

The Effect of Overhangs on Fenestration SHGC Overhangs allow a higher SHGC

product to be installed Projection factor must be

calculated

502.3.2

Building Thermal EnvelopeFenestration SHGC Requirements

Class Exercise




IECC Chapter 5

503.2 - Mandatory Provisions

503.3 - Simple HVAC Systems and Equipment (503.3)

Section 503

Mechanical Systems

503.4 - Complex HVAC Systems and Equipment

- OR -

Provisions Applicable to ALL Mechanical Systems Duct and Plenum

Insulation and Sealing Piping Insulation HVAC System

Completion Air System Design and

Control Motor Nameplate

Horsepower Heating Outside a

Building

HVAC Load Calculations Equipment and System

Sizing HVAC Equipment

Performance Requirements HVAC System Controls Ventilation Energy Recovery

Ventilation Systems

503.2

Mechanical: Mandatory Provisions

Heating and cooling load sizing calculations required ASHRAE/ACCA Standard 183 Other approved computation procedures –

defined in Chapter 3• Exterior design conditions

– Specified by ASHRAE• Interior design conditions

– Specified by Section 302 of the IECC• ≤ 72oF for heating load• ≥ 75oF for cooling load

503.2.1 Mandatory

Mechanical: MandatoryHVAC Load Calculations

Output capacity SHALL NOT exceed sizing Select the system which serves the greater load,

heating or cooling– Exceptions

• Standby Equipment with Required Controls• Multiple Units with Combined Capacities Exceeding

Loads– Sequencing Controls Required

503.2.2 Mandatory

Mechanical: MandatoryHVAC Load Calculations

• Applies to all equipment used in heating and cooling of buildings

– Where components from different manufacturers are used calculations & supporting data demonstrating combined efficiency meets requirements

• Must comply with all listed efficienciesException: Water-cooled centrifugal water-

chilling packages

503.2.3 Mandatory Minimum Efficiency Requirements

Mechanical: MandatoryHVAC Performance

Table 503.2.3(2)


Table 503.2.3(2)


• Control required for each zone

503.2.4 Mandatory

• Thermostats must have at least a 5°F dead band

Exception:• Thermostats requiring

manual change over between heating and cooling

Mechanical: MandatorySystem Controls

Automatic time clock or programmable systemExceptions

• Zones operated continually• Zones with full HVAC load demand <6,800 Btu/h and has

a readily accessible shut off switch

Thermostatic setback capabilitiesCapability to maintain zone temps down to 55ºF

or up to 85ºF

Automatic setback and shutdown

503.2.4.3 Mandatory

Mechanical: MandatoryOff-Hour Controls

Motorized dampers that will automatically shut when the system or spaces are not in use.

Exceptions• Gravity dampers permitted in buildings < 3 stories• Gravity dampers permitted for buildings of any height

located in Climate Zones 1-3• Gravity dampers permitted for outside air intake or

exhaust airflows of 300 cfm (0.14m3/s) or less.

503.2.4.4 Mandatory

Mechanical: MandatoryShut-Off Dampers

DCV must be provided for each zone with spaces > 500 ft² and the average occupant load > 40 people/1000 ft² of floor area where the HVAC system has:

An air-side economizer, Automatic modulating control of the outdoor air damper,

or A design outdoor airflow > 3,000 cfmDemand control ventilation (DCV): a ventilation system

capability that provides for the automatic reduction of outdoor air intake below design rates when the actual occupancy of spaces served by the system is less than design occupancy.

503.2.5.1 Mandatory

Mechanical: MandatoryDemand Control Ventilation

Exceptions: Systems with energy recovery per 503.2.6 Multiple zone systems without direct digital

control of single zones communicating with central control panel

Systems with design outdoor airflow < 1,200 cfm Spaces where supply airflow rate minus any

makeup or outgoing transfer air requirement < 1,200 cfm

503.2.5.1 Mandatory

Mechanical: MandatoryDemand Control Ventilation

Applies to individual fan systems with Design supply air capacity ≥ 5,000 cfm Minimum outside air supply of ≥ 70% of design supply

air quantityExhaust air recovery efficiency must be ≥ 50%

503.2.6 Mandatory

Mechanical: MandatoryEnergy Recovery Ventilation

Exceptions: Where energy recovery ventilation systems prohibited by the

IMC Lab fume hood system with at least one of the following:

– VAV hood exhaust and room supply systems capable of reducing exhaust and makeup air volume to ≤ 50% of design values

– Direct makeup (auxiliary) air supply equal to at least 75% of exhaust rate, heated no warmer than 2ºF below room setpoint, cooled to no cooler than 3ºF above room setpoint, no humidification added, and no simultaneous heating and cooling use for dehumidification control

Systems serving uncooled spaces and heated to < 60ºF Where > 60% of outdoor heating energy is from site-recovered

or site solar energy Heating systems in climates < 3,600 HDD Cooling systems in climates with a 1% cooling design wet-bulb

temperature < 64ºF Systems requiring dehumidification that employ series-style

energy recovery coils wrapped around the cooling coil

503.2.6 Mandatory

Mechanical: MandatoryEnergy Recovery Ventilation

Insulation required for supply and return ducts and plenums

Located in unconditioned space – minimum R5

Located outside the building - minimum R8

Exceptions When located within

equipment When design temperature

difference between interior and exterior of the duct or plenum doesn’t exceed 15ºF

503.2.7 Mandatory

Mechanical: MandatoryDuct and Plenum Insulation and Sealing

Ducts designed to operate at static pressures ≤ 2 in. wg

Securely fastened and sealedExceptions

• When located within equipment• Design temperature difference between interior and

exterior of duct or plenum <15°F

503.2.7.1 & 503.2.7.2 Mandatory

Mechanical: MandatoryDuct Construction: Low and Medium Pressure

Ducts

Ducts designed to operate at static pressures > 3 in. wg to be leak tested in accordance with SMACNA HVAC Air Duct Leakage Test Manual

Air leakage rate ≤ 6.0CL = F x P0.65

• Where– F = leakage rate per 100 sf of duct surface area– P = test condition static pressure

Must test ≥ 25% of the duct area and meet the requirements

503.2.7.1.3 Mandatory

Mechanical: MandatoryDuct Construction: High Pressure Duct

Systems

FLUID

NOMINAL PIPE DIAMETER

≤ 1.5” ≥ 1.5”

Steam 1 ½ 3

Hot water 1 ½ 2

Chilled water, brine or refrigerant

1 ½ 1 ½

All piping serving heating or cooling system must be insulated in accordance with Table 503.2.8

Minimum Pipe Insulation(thickness in inches)

503.2.8 Mandatory, Table 503.2.8

Mechanical: MandatoryPiping Insulation

Exceptions: Piping internal to HVAC equipment (including

fan coil units) factory installed and tested Piping for fluid in temperature range

– 55 < temp < 105°F Piping for fluid not heated or cooled by

electricity or fossil fuels Runout piping ≤ 4’ in length and 1” in diameter

between the control valve and HVAC coil

503.2.8 Mandatory

Mechanical: MandatoryPiping Insulation

Air System BalancingHydronic System BalancingManuals

– Equipment Capacity and Required Maintenance

– Equipment O & M Manuals – HVAC System Control Maintenance and

Calibration Information– Written Narrative of Each System Operation

503.2.9 Mandatory

Mechanical: MandatoryHVAC System Completion

Maximum fan power requirements Applies to HVAC systems with total fan system power > 5 hp Each HVAC system at design conditions can not exceed allowable fan system motor

nameplate hp (Option 1) or fan system bhp (Options 2) in Table 503.2.10.1(1)

TABLE 503.2.10.1.1(1) FAN POWER LIMITATION

bhp = brake horsepower

503.2.10 Mandatory, Table 503.2.10.1(1)

Mechanical: MandatoryAir System Design and Control

• Fan System BHP – The sum of the fan brake horsepower of all fans that are required to operate a fan system design conditions to supply air from the heating or cooling source to the conditioned space and return it to the source or exhaust it to the outdoors.


BHP option includes adjustment “adders” certain devices

Table 503.2.10.1(2)

DEVICE ADJUSTMENT Credits

Fully ducted return and/or exhaust air systems 0.5 in w.c.

Return and/or exhaust air flow control devices 0.5 in w.c Exhaust filters, scrubbers, or other exhaust treatment.

The pressure drop of device calculated at fan system design condition.

Particulate Filtration Credit: MERV 9 thru 12 0.5 in w.c.

Particulate Filtration Credit: MERV 13 thru 15 0.9 in w.c. Particulate Filtration Credit: MERV 16 and greater and electronically enhanced filters

Pressure drop calculated at 2x clean filter pressure drop at fan system design condition.

Carbon and Other gas-phase air cleaners

Clean filter pressure drop at fan system design condition.

Heat Recovery Device Pressure drop of device at fan system design condition.

Evaporative Humidifier/Cooler in series with another cooling coil

Pressure drop of device at fan system design conditions

Sound Attenuation Section 0.15 in w.c. Deductions

Fume hood exhaust exception -1.0 in w.c.

Allowable Fan Motor Horsepower

Commercial Building Mechanical Systems: Allowable Fan Motor Horsepower503.2.10 Mandatory


ExceptionsHospital and laboratory systems using

flow control devices on exhaust and/or return for health and safety or environmental control permitted to use variable fan power limitation

Individual exhaust fans ≤ 1 hpFans exhausting air from fume hoods

503.2.10.1 Mandatory

Mechanical: MandatoryAllowable Fan Motor Horsepower

Selected fan motor to be no larger than first available motor size greater than bhp

Fan bhp on design documents

Exceptions Fans < 6 bhp, where first available motor larger than

bhp has nameplate rating within 50% of bhp, next larger nameplate motor size may be selected

Fans ≥ 6 bhp, where first available motor larger than bhp has nameplate rating within 30% of bhp, next larger nameplate motor size may be selected

bhp = brake horsepower503.2.10.2 Mandatory

Mechanical: MandatoryMotor Nameplate Horsepower

Have to be radiant systems

Controlled by an occupancy sensing device or timer switch

System is automatically de-energized when no occupants are present.

503.2.11 Mandatory

Mechanical: MandatoryHeating Outside a Building

• 503.2.11 – Systems installed outside buildings shall be radiant systems, with occupancy systems or timers.

Mechanical: MandatoryHeating Outside a Building

Simple systems Unitary or

packaged HVAC equipment

Serves one zone and controlled by a single thermostat

Buildings served by unitary or packaged

HVAC each serving 1 zone controlled by 1

thermostat. Two-pipe heating systems serving

multiple zones are included if no cooling

system is installed [Tables 503.2.3(1)

through 503.2.3(5)]

Section 503.3 Simple

Systems

503.3, Tables 503.2.3(1) through 502.2.3(5)

Mechanical: PrescriptiveSimple or Complex Systems

Simple Systems

Mechanical: PrescriptiveSimple Systems

Unitary or packaged, single zone controlled by a single thermostat in the zone served.

Simple Systems Unitary packaged heating and cooling

systems Split system heating and cooling systems Packaged terminal A/C and HPs Fuel-fired furnace Electrical resistance heating Two-pipe heating systems w/o cooling

503.3

Mechanical: PrescriptiveSimple HVAC Systems & Equipment

Must include economizers dependent on climate zone Capable of providing 100-percent outdoor air even if

additional mechanical cooling is required (integrated economizer)

Must provide a means to relieve excess outdoor air

503.3

Mechanical: PrescriptiveSimple HVAC Systems & Equipment

CLIMATE ZONES ECONOMIZER REQUIREMENT

1A, 1B, 2A, 7, 8 No requirement

2B, 3A, 3B, 3C, 4A, 4B, 4C, 5A, 5B, 5C, 6A, 6B

Economizers on cooling systems ≥ 54,000 Btu/ha

a The total capacity of all systems without economizers shall not exceed 480,000 Btu/h per building, or 20 percent of its air economizer capacity, whichever is greater

Table 503.3.1(1)

503.3.1, Table 503.3.1(1)

Mechanical: PrescriptiveSimple Economizers

CLIMATE ZONES COOLING EQUIPMENT PERFORMANCE IMPROVEMENT (EER OR IPLV)

2B 10% Efficiency Improvement



Trade-off high cooling efficiency for economizerTable 503.3.1(2)

Two Exceptions

503.3.1, Table 503.3.1(2)

Mechanical: PrescriptiveSimple Economizers

Complex Systems

Mechanical: PrescriptiveComplex Systems

This section applies to all HVAC equipment and systems not included in Section 503.3

Complex Systems Packaged VAV reheat Built-up VAV reheat Built-up single-fan, dual-duct VAV Built-up or packaged dual-fan, dual-duct VAV Four-pipe fan coil system with central plant Water Source heat pump with central plant Any other multiple-zone system Hydronic space heating and cooling system

503.4 Prescriptive

Mechanical: PrescriptiveComplex Systems

System ≥ 300,000 Btu/h must includeTemperature reset or variable flow

• Automatic resets for supply water temperature by at least 25% of design supply-to-return temperature differences or

• Reduce system pump flow by 50% of design flow using

– Multiple Staged Pumps– Adjustable Speed Drives– Control Valves that modulate as a function of load

503.4.3.4

Commercial Building Mechanical Systems: Hydronic Water Loop Heat Pump Systems

Mechanical: PrescriptiveHydronic Systems Controls

• Individual dual duct or mixing reheating and cooling systems with a single fan and with total capacities > 90,000 Btu/h (7.5 tons) should not have economizers

503.4.5.3

Mechanical: PrescriptiveSingle Fan Dual Duct & Mixing VAV Systems,

Economizers

Class Exercise




IECC Chapter 5

Table 504.2 Minimum Performance of Water-Heating Equipment

Water Heater Types Covered• Electric Storage• Gas and Oil Storage• Instantaneous Water Heaters – Gas

and Oil• Hot water boilers – gas and oil• Pool heaters• Unfired storage tanks

Temperature Controls (504.3)Heat Traps (504.4)

504 Mandatory, Table 504.2

Service Water HeatingMandatory: Performance Efficiency

Non-circulating system insulation requirements First eight feet of outlet piping on systems with no

integral heat traps 1/2 inch of insulation required

Circulating systems 1 inch of insulation

504.5

Service Water HeatingMandatory: Pipe Insulation

Ability to turn off circulating hot water pumps and heat trace tape when the system is not in operation

Automatically or manually

504.6

Service Water HeatingMandatory: System Controls

Pool heaters (504.7.1) Readily accessible on-off switch Natural gas or LPG fired pool heaters will not have

continuously burning pilot lights

Time switches (504.7.2) Automatic controls required to operate pool heaters and

pumps on a preset schedule Exceptions

• Where public health standards require 24 hour operation• Where pumps are required to operate solar and waste heat

recovery pool heating systems

504.7

Service Water HeatingMandatory: Pool Requirements

Heated pools required to have a pool cover Pool cover must be vapor retardant

Pools heated to over 90oF Minimum R-12 insulation

Exception Pools deriving > 60% energy for heating from site-

recovered energy or solar source504.7.3

Service Water HeatingMandatory: Pool Covers

Class Exercise




IECC Chapter 5

• Newly Installed Lighting Systems in a New Building, Addition, or Tenant Improvements and Build-outs

• Existing Lighting Systems that are altered• Change in Occupancy that Increases Energy• Change in Occupancy that requires less LPD as shown in Table

505.3.2Exceptions:

• Historic buildings– State or National listing– Eligible to be listed

• Alterations where less than 50% of the luminaires in a space are replaced and installed interior power lighting is not increased

• Lighting within dwelling units– Where ≥ 50% of permanently installed fixtures include high-

efficacy lamps

101

Lighting SystemsScope

• Interior Lighting requirements Required Controls Wattage/Efficiency Limits

• Interior Lighting Power Allowances

• Exterior Lighting Controls Required Controls Lamp Efficiency

• Exterior Lighting Power Allowances

• Electric Metering505 Mandatory

Lighting SystemsScope

Independent Lighting Control required for each space surrounded by floor-to-ceiling partitions

Must be located in the space served, - OR -

Switched from a remote location• Must have indicator that identifies

the lights served and their status (off or on)

Exemptions• Security or emergency areas that

must be continuously lighted• Lighting in stairways or corridors

that are elements of the means of egress

505.2

Lighting SystemsMandatory: Interior Lighting Controls

Light Reduction Controls must allow the occupant to reduce connected lighting

By at least 50% In a reasonably uniform

illumination pattern

505.2.2.1

Lighting SystemsMandatory: Interior Light Reduction

Controlling all lamps or luminaires Dual switching of alternate rows of luminaires, alternate luminaires

or lamps Switching middle lamp luminaires independently from the outer

lamps Each luminaire or each lamp

SS

Dimmer SwitchD

Alternating Luminaires

Dimming

SS

Alternating Lamps

505.2.2.1

Lighting SystemsMandatory: Interior Light Reduction Control

Options

Light Reduction Control Not required for the following:

Areas with only one luminaire

Areas controlled by occupancy sensor

Corridors, storerooms, restrooms or public lobbies

Sleeping unitsSpaces with <0.6 w/ft2

505.2.2.1

Lighting SystemsMandatory: Interior Light Reduction Exemptions

Automatic lighting shutoff control device required in all buildings larger than 5,000 ft2

Building Defined: “Any structure used or intended for supporting or sheltering any use or

occupancy”Building area surrounded by exterior walls and fire walls

Exempted spacesSleeping unitsLighting for patient careWhen an automatic shutoff would endanger occupant safety or security

505.2.2.2

Lighting SystemsMandatory: Interior Automatic Lighting Shutoff

1. Control lights on a scheduled basis (automatic time switch)• Time-of-day controller• Controls ≤ 25,000 ft2 and

not more than one floor, or

2. Occupant sensor• Turn lights off within 30

minutes of occupant leaving the space

3. Signal from another control or alarm that indicates the area is unoccupied

Office

Occupancy Sensor

ConferenceRoom

Restrooms

Lobby

Connect to Lighting in Lobby

Open Bay Office

Connect to Lighting in Open Bay Office

Automatic Lighting Control

110’

50’

Automatic Lighting Shutoff Compliance Options

Courtesy Britt-Makela Group

505.2.2.2

Lighting SystemsMandatory: Automatic Shutoff Options

Readily accessible Within view of the lights or area controlled Manually operated ≤ 2 hour override

– The override allows lighting to remain on no more than 2 hours when override is initiated

Controls an area ≤ 5,000 ft2

Exemptions– Can be over 2 hour override in malls and arcades, auditoriums,

single-tenant retail space, industrial facilities and arenas when using captive key override

– Override in malls and arcades, auditoriums, single-tenant retail space, industrial facilities and arenas can cover up to 20,000 ft2

505.2.2.2.1

Lighting SystemsMandatory: Automatic Shutoff Occupant

Override

Feature that turns off all loads for 24 hours then resumes the normally scheduled operationExceptions

Retail stores and associated mallsRestaurantsGrocery storesPlaces of religious worshipTheaters

505.2.2.2.2

Lighting SystemsMandatory: Automatic Shutoff Holiday

Scheduling

• Daylight Zones Must have individual control of the lights independent of

general area lighting• Contiguous daylight zones adjacent to vertical fenestration

Can be controlled by a single controlling device if the zone doesn’t include areas facing more than two adjacent orientations (i.e., north, east, south, west)

• Daylight zones under skylights > 15 ft from the perimeter Must be controlled separately from daylight zones adjacent to

vertical fenestrationException: Daylight spaces 1) enclosed by walls or ceiling height

partitions and 2) containing two or fewer light fixtures • not required to have a separate switch for general area lighting

Note: required controls may be manual or automatic

505.2.2.3

Lighting SystemsMandatory: Daylight Zone Control

the width of the window plus 2 feet on each side, or

the window width plus distance to opaque partitions, or

the window width plus one-half the distance to adjacent skylight or vertical fenestration, whichever is least.505.2.2.3

Lighting SystemsDaylight Zone Definition

The daylight zone depth is assumed to be 15 feet into the space or to the nearest ceiling height opaque partition, whichever is lessThe daylight zone width is assumed to be:

The area under skylights whose horizontal dimension, in each direction, is equal to the skylight dimension plus the smaller of: The floor-to-ceiling height, or The distance to a ceiling height opaque partition, or One-half the distance to adjacent skylights or vertical fenestration

(whichever is least)

505.2.2.3

Lighting SystemsDaylight Zone Under Skylights

Standard Room Suite

$$

$$

$$

$$

$$$$

$$

$$$$

$$

Applies to hotels, motels, boarding houses or similar Master switch required at each room or main room

entry Must control all permanently wired luminaires or

switched receptaclesExceptions: bathrooms

505.2.3

Lighting SystemsMandatory: Sleeping Unit Controls

For dusk-to-dawn lighting: astronomical time switch or photosensor For all other: astronomical time switch OR

photosensor + time switch All time switches must have at least 10 hour battery

backup

505.2.4

Lighting SystemsMandatory: Exterior Lighting Controls

Tandem Wiring for all Odd Numbered Lamp Configurations Exceptions

Where electronic high frequency ballasts are used

Luminaires on emergency circuits

Luminaires with no available pair in the same area

505.3 Mandatory

Lighting SystemsMandatory: Tandem Wiring

Exit Signs Internally illuminated exit signs shall not

exceed 5 watts per side

505.4

Lighting SystemsMandatory: Exit Signs

Sum the wattage of all proposed connected lighting power

This must include all lighting that is part of the design for the space including:

Overhead lighting Task lighting Decorative lighting

505.5.1

Lighting SystemsPrescriptive: Interior Lighting Power

Connected Interior Lighting Power must not exceed Interior Lighting Power Allowance

1. Calculate Interior Lighting Power Allowance• Building Area type allowance• Additional allowances

2. Calculate proposed connected lighting power• Wattage calculation “rules”• Exempted lighting

3. Compare values: proposed wattage must be less than or equal to allowed wattage

505.5

Lighting SystemsPrescriptive: Interior Lighting Power

Connected power for following not included in calculations: Professional sports arena playing field Sleeping unit lighting Emergency lighting automatically off during normal building

operation Lighting in spaces specifically designed for use by occupants

with special lighting needs including visual impairment and other medical and age related issues

Lighting in interior spaces specifically designated as a registered interior historic landmark

Casino gaming areas Lighting equipment used for the following exempt if in

addition to general lighting and controlled by an independent control device

• Task lighting for medical and dental procedures• Display lighting for exhibits in galleries, museums and

monuments

505.5.1

Lighting SystemsExemptions to Interior Lighting Power

Theatrical, stage, film, and video production Used for photographic processes Integral to equipment or instrumentation installed by

manufacturer Plant growth or maintenance Advertising or directional signage Food warming and food prep equipment (in restaurant

bldgs & areas) Lighting equipment that is for sale Lighting demonstration equipment in lighting education

facilities Approved because of safety or emergency

considerations, exclusive of exit lights Integral to both open and glass-enclosed refrigerator and

freezer cases In retail display windows when the display is enclosed by

ceiling-height partitions Furniture-mounted supplemental task lighting controlled

by automatic shutoff505.5.1

Lighting SystemsExemptions to Interior Lighting Power

Building Area TypeNote: Alternate standard

ASHRAE/IESNA 90.1-2007 provides whole building and space-by-space options

Table 505.5.2

505.5.2

Lighting SystemsInterior Lighting Power Allowances

First, choose an appropriate “Building Area Type” from the allowance table (505.5.2)

“Building Area” includes all spaces that are associated with that business or function type.

For example a space with:• Corridors,• Restrooms,• A lobby, and• Office space

…would be considered an Office Building Area Type

Then...multiply the lighting power density (W/ft2) by the total building square footage to get allowed watts for compliance

505.5.2

Lighting SystemsInterior Lighting Power Allowance Calculation

Office: 200,000 ft2

1.0 W/ft2 = 200,000 W

Table 505.5.2

Table 505.5.2

Example: OfficeA 200,000 ft2 office building that contains corridor, restrooms, break rooms and a lobby is given 1.0 W/ft2 for the entire building

Lighting SystemsInterior Lighting Power Allowance Calculation

(Retail Area 1 x 0.6 W/ft2) + (Retail Area 2 x 0.6 W/ft2) + (Retail Area 3 x 1.4 W/ft2) + (Retail Area 4 x 2.5 W/ft2),

Where: Retail Area 1 = the floor area for all

products not listed in Retail Area 2, 3 or 4. Retail Area 2 = the floor area used for the

sale of vehicles, sporting goods and small electronics.

Retail Area 3 = the floor area used for the sale of furniture, clothing, cosmetics and artwork.

Retail Area 4 = the floor area used for the sale of jewelry, crystal, and china.

Table 505.5.2 - Footnotes

Lighting SystemsRetail Lighting Power Allowance

Additional Interior Lighting Power Allowance = 1000 watts +

Exception: Other merchandise categories may be included in Retail Areas 2 through 4 above, provided that justification documenting the need for additional lighting power based on visual inspection, contrast, or other critical display is approved by the authority having jurisdiction. Photo courtesy of Ken Baker, K energy

Table 505.5.2 - Footnotes

Lighting SystemsRetail Lighting Power Allowance

How is an allowance determined if the building has more than one Building Area Type?

Example – A building contains the following area types• Museum: 40,000 ft2

• Retail 5,000 ft2

• Cafeteria: 10,000 ft2

Use the more specific building area type where more than one area type exists in the buildingSum the individual (lighting power density x area square footage) values for Total Power Allowance

505.5.2

Lighting SystemsLighting Power Allowance for Multiple

Occupancy

Cafeteria:10,000 ft2

at 1.4 W/ft2 = 14,000 W Museum: 40,000 ft2

at 1.1 W/ft2 = 44,000 W

Retail: 5,000 ft2

at 1.5 W/ft2 = 7,500 W

Total watts allowed = 65,500 W

Table 505.5.2

505.5.2

Lighting SystemsLighting Power Allowance for Multiple

Occupancy

Lighting wattage must be calculated in accordance with Section 505.6

Screw lamp holders: maximum labeled wattage of the luminaire Low voltage lighting: transformer wattage Line voltage track:

1. specified wattage with minimum of 30 W/linear ft OR2. wattage limit of system’s circuit breaker OR3. wattage limit of other permanent current limiting devices

Other: manufacturer’s rated wattage of lamp and associated ballast

505.6 Mandatory

Lighting SystemsMandatory: Exterior Lighting Requirements

Building grounds lighting luminaires over 100 watts must have source efficacy of at least 60 lumens per watt

Exceptions Controlled by motion sensor Any of the exterior lighting power allowance exceptions As approved for a historical, safety, signage, or emergency consideration

Light SourceTypical System Efficacy Range in

LPW(varies depending on wattage and

lamp type)Incandescent 10-18Halogen incandescent 15-20Compact fluorescent (CFL)

35-60

Linear fluorescent 50-100Metal halide 50-90

505.6.1

Lighting SystemsMandatory: Building Grounds Lighting

Connected Exterior Lighting Power must not exceed Exterior Lighting Power Allowance

1. Calculate exterior lighting power allowance • Lighting power densities by exterior function and by

applicable lighting zone2. Calculate proposed connected lighting power

• Wattage calculation “rules”• Exempted lighting

3. Compare values: proposed wattage must be less than or equal to allowed wattage

505.6.2

Lighting SystemsMandatory: Exterior Lighting Power Limits

The following lighting does not need to be included in the proposed lighting calculation:• Specialized signal, directional, and marker lighting associated with transportation• Advertising signage or directional signage• Lighting integral to equipment or instrumentation and installed by its

manufacturer• Lighting for theatrical purposes, including performance, stage, film production,

and video production• Lighting for athletic playing areas• Temporary lighting• Lighting for industrial production, material handling, transportation sites, and

associated storage areas• Theme elements in theme/amusement parks• Lighting used to highlight features of public monuments and registered historic

landmark structures or buildings

505.6.2)

Lighting SystemsExemption from Exterior Lighting Calculation

What areas are covered under exterior lighting allowances?

Tradable surfacesCommon exterior lighted needs that can be traded for other needs.

• For example, wattage allowed for parking lot lighting can be “traded” and used for canopy lighting.

Nontradable surfacesLess common exterior lighted needs that cannot be traded for other needs.

• These applications have more specific security or task illuminance needs.

Table 505.6.2(2)

Lighting SystemsExterior Lighting Power Limits

Uncovered parking lots and areas Walkways (under and over 10 feet

wide) Stairways Pedestrian tunnels Main building entrances and exits Other doors Entry canopies Free-standing and attached sales

canopies Open sales areas Street frontage sales areas

Table 505.6.2(2)

Lighting SystemsExterior Lighting Tradable Surfaces

Building facades Automated teller machines and night depositories Entrances and gatehouse inspection stations at guarded facilities Loading areas for law enforcement, fire, ambulance and other emergency

vehicles Drive-up windows/doors Parking near 24-hour retail entrances

Table 505.6.2(2)

Lighting SystemsExterior Lighting Non-Tradable Surfaces

Lighting Zone

Description

1 Developed areas of national parks, state parks, forest land, and rural areas

2 Areas predominantly consisting of residential zoning, neighborhood business districts, light industrial with limited nighttime use and residential mixed use areas

3 All other areas4 High-activity commercial districts in

major metropolitan areas as designated by the local land use planning authority

Table 505.6.2(1)

Lighting SystemsExterior Lighting Zones

Zone 1 Zone 2 Zone 3 Zone 4 Tradable

SurfacesBuilding Entrances and Exits

Main entries

20 W/linear foot of door width

20 W/linear foot of door

width


30 W/linear foot of door

width

Other doors 20 W/linear

foot of door width




Entry Canopies 0.25 W/ft2 0.25 W/ft2 0.4 W/ft2 0.4 W/ft2

Sales Canopies Free-standing

and attached

0.6 W/ft2 0.6 W/ft2 0.8 W/ft2 1.0 W/ft2

Outdoor Sales Open areas

(including vehicle

sales lots) 0.25 W/ft2 0.25 W/ft2 0.5 W/ft2 0.7 W/ft2

Street frontage for

vehicle sales lots in

addition to “open

area” allowance

No allowance 10 W/linear foot

10 W/linear foot

30 W/linear foot

Table 505.6.2(2)

Lighting SystemsExterior Lighting Power Allowances

Example

Bank

ATM

Walkway5 ft wide

Canopy

Parking Lot

Parking: 10,000 ft2

Canopy: 100 ft2Walkway: 300 ft

ATM –One location

How many tradable watts are allowed for this project? How many nontradablewatts?

Bank

ATM

Walkway5 ft wide

Canopy

Parking Lot

Bank

ATM

Walkway5 ft wide

Canopy

Parking Lot

Parking: 10,000 ft2Canopy: 100

ATM –One location

How many tradable watts are allowed for this project? How many nontradablewatts?

Lighting SystemsExterior Lighting Power Allowances

Separate metering required for each dwelling unit

505.7 Mandatory

Lighting SystemsMandatory: Electrical Energy Consumption

Class Exercise


• Mandatory and Prescriptive Path Provisions– Section 502 - Building Envelope– Section 503 - Mechanical Systems– Section 504 - Service Water Heating– Section 505 - Electrical Power and Lighting


IECC Chapter 5

• Energy loads that must be included in the Energy Simulation Analysis– Heating, cooling systems and fans systems– Service water heating– Lighting power– Receptacle and process loads

• Mandatory requirements– Mandatory provisions of building envelope,

mechanical, service water heating and lighting

Total Building PerformanceScope

Need to model a standard reference design to the mandatory and prescriptive requirements.

Convert annual energy consumption to annual energy cost.

Need to model your proposed design.Convert annual energy consumption to annual energy cost.

Compliance is based on annual energy cost for proposed design < annual cost for standard reference design.

For both cases unite energy cost has to be the same.For both cases, simulation rules may apply.

506.3

Total Building PerformancePerformance-Based Compliance

506.3

Compliance based on total building performance requires that a proposed building (proposed design) be shown to have an annual energy cost that is less than or equal to the annual energy cost of the standard reference design.

Energy prices shall be taken from a source approved by the code official, such as the Department of Energy, Energy Information Administration's State Energy Price and Expenditure Report.

Total Building PerformancePerformance-Based Compliance

http://www1.eere.energy.gov/buildings/commercial_initiative/modeling_software.html

Calculation Software Tools – Sec. 506.6

ASHRAE 90.1Compliance Option

IECC Code ComplianceExercise

Building Location: Phoenix, AZEnergy Code: 2009 IECCOccupancy: Retail (Gr0up M) Construction:• Single-story, pitched wood roof

with flat ceiling, wood-frame walls (16” o.c.), concrete slab-on-grade without basement. Openings on all four walls.

Energy Code Compliance Exercise

3’ x 7’ door

Energy Code Compliance Exercise

Determine energy code compliance using the following paths:

1)Prescriptive requirements2)COMcheck energy compliance software –

www.energycodes.gov

You must select:3)Insulation values for walls) and ceiling4)U-factor and SHGC for fenestration5)Service water heating6)Mechanical systems7)Interior lighting

http://www.energycodes.gov/

COMcheck™ DOE’s commercial compliance software

(Windows or Mac version)

Desktop Software Tools Web-Based Tools

www.energycodes.gov

• For commercial buildings- can show compliance through the prescriptive approach, trade-off approach or the performance approach.

• COMcheck utilizes only the trade-off approach.

COMcheck™

DOE’s commercial compliance software

Case StudyCommercial Renovation

The office space goes beyond code compliance to result in 42.3% energy savings of the proposed building over the baseline building (ASHRAE 90.1 2004).

Commercial Case StudyMajor Renovation – Downtown Scottsdale

Existing Building:Office with 2nd story apartment1614 sq. ft. conditioned space1110 sq. ft. roof deckRenovated Building:Two story design office and studio2330 sq. ft. conditioned space340 sq. ft. roof deck

FLOOR LAYOUT

The building was built in 1981 and is two stories with office on the first floor and residence on the second.


As a major renovation, the project complies to the scope and requirements of additions and alterations to existing buildings.

Main points of Focus :1. Building Envelope :

Ceiling and Skylights

2. Internal Loads3. High efficiency

HVAC Systems

• Simulation Software Used: eQuest (DOE2.2)

• Code Compliance to: ASHRAE 90.1 2004


ENERGY MODELING

BUILDING ENVELOPE

• Ceiling insulation has been added to improve the efficiency of the building envelope

• New insulated walls at east and west exposures with exterior radiant finishes

• New high performance windows on east and west exposures with exterior movable louvers

Before Retrofit

After Retrofit

Description IECC Project

Ceiling R Value 20ci 34.29ciWall R Value R-13 R-19Window U Factor 0.75 0.29Window SHGC 0.33 0.39


Old Systems :• 3 Ton Heat Pump units. SEER 10.New Systems:• Two 5 Ton high efficiency Trane SEER 16

heat pump two stage units with R410A refrigerant.

• No Economizers.Ventilation per IMC:• HP-1 is designed to provide 100 CFM of

OSA• HP-2 is designed to be provide with 200

CFM. • Demand controlled ventilation is exempt

due to an occupant load of less than 40.Description IECC Project

Cooling System Efficiency SEER13 SEER16MECHANICAL SYSTEMS: BEYOND CODE


MECHANICAL

LIGHTING

LIGHTING EFFICIENCY• 15% energy savings over baseline

building in lighting end use

Occupancy Sensors:• A 10% lighting power credit applied to

all lighting connected to occupancy sensors.

• Project has installed occupancy sensors for 75% of the connected lighting load

LIGHTING SYSTEM: BEYOND CODE


SOLAR PHOTOVOLTAIC SYSTEM• Twelve Kyocera photovoltaic modules

rated at 2.47 DC• Offsets approximately 23% of the annual

energy use • The actual offset per year in costs is about

$610


RENEWABLE ENERGY

ANNUAL ENERGY CONSUMPTION

Energy Analysis Summary


What’s on the horizon? 2012 IECC

International Green Construction Code (IgCC)

ASHRAE 189.1

Released in 2011

New compliance option to choose between high performance lighting, high performance HVAC equipment, or onsite renewable power generation

More efficient air leakage requirements by requiring continuous air barriers for the building envelope

Commissioning requirement for HVAC systems

2012 IECCCommercial Changes

Most significant increase in history of energy efficiency codes

Released in 2011

Increased efficiency of the opaque thermal envelope provisions

Increased fenestration efficiency Mandated automatic daylighting

controls for buildings with a window-to-wall ratio over 30%

A requirement for skylights and daylighting controls for spaces over 10,000 ft2 in certain building types

Recognizes the the energy code as a design document

2012 IECCCommercial Changes (cont.)

Released March 2012

Site Development and Land Use

Materials Resources Energy Efficiency Water Efficiency Indoor Environmental

Quality Commissioning, Operation

and Maintenance


http://www.usgbc.org/members/usgbc.eps

http://www.iesna.org/

http://www.astm.org/index.shtml

• Commercial and multi-family projects• Overlay code designed to integrate

with established building codes• Written in mandatory language as a

model code for local adoption• Not a substitute for good design• Work within regulatory framework




http://www.astm.org/index.shtml

LEED andOther Green Rating Programs

Signature Buildings

International Green Construction CodeStandard Buildings

Closing gap betweenminimum code requirements

and criteria for LEED certification

Gap between IgCC and LEED

Ceiling

Floor

Energy Efficiency and Atmospheric Quality

Zero Energy Performance Index (zEPI) of 51

Scottsdale’s current energy code requires a baseline energy performance equivalent to a zEPI of 62

2000 2012 2015 2018 2021 2024 2027 20300

20406080

100120

zEPI Score

zEPI Score

Energy Efficiency and Atmospheric Quality

Energy Metering and Monitoring capability to measure energy use and on-site

production data acquisition and management system capable

of storing not less than 36 months of data Renewable Energy Systems renewable energy must

provide at least 2% of total calculated annual energy use

ASHRAE 189.1PStandard for Green Commercial

Buildings

Site SustainabilityWater Use EfficiencyEnergy EfficiencyIndoor Environmental

QualityMaterials and ResourcesConstruction and

Operation

SS

WE

EE

IEQ

MR

CO

2011 Edition



Energy Efficiency Highlights

• More energy efficient than ASHRAE 90.1- 2010

• Renewable energy Provisions

• Energy measurement for verification

• Electric peak load reduction

Resources

Adopt, Implement, EnforceResources

Resources

• http://www.iccsafe.org• http://www.energycodes.gov• http://bcap-energy.org• http://www.naseo.org• http://www.eere.energy.gov• https://energycode.pnl.gov/REScheckWeb/• https://energycode.pnl.gov/COMcheckWeb/• http://resourcecenter.pnl.gov/cocoon/

morf/ResourceCenter

Real Estate

2009 IECC: Advanced