w. e. info@joanna-james

DATE:DESCRIPTION:REV: BY:

REVISION:PROJECT NO: DRAWING NO:

DRAWN:DATE: CHECKED:

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Joanna James Ltd.w. www.joanna-james.come. [email protected]

CLIENT'S NAME HERE56 EXAMPLE ROADLONDONEC1B 3AS

ARCHITECT'S NAME HERE124 EXAMPLE STREETBIRMINGHAMBR2 4FG

PROJECT ADDRESSPROJECT ADDRESS LINE 2

PROPOSED ANNEXE PROPOSED FOUNDATION PLAN

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1. THE COPYRIGHT OF THIS DRAWING IS VESTED IN JOANNA JAMES LTD.AND IT MAY NOT BE REPRODUCED IN WHOLE OR PART OR USED FOR THEMANUFACTURE OF ANY ARTICLE WITHOUT THE EXPRESS PERMISSION OFTHE COPYRIGHT HOLDERS.

2. WORK TO FIGURED DIMENSIONS ONLY.

3. THIS DRAWING IS TO BE READ IN CONJUNCTION WITH ALL RELEVANTARCHITECT'S, SERVICE ENGINEER'S AND YourSpreadsheets DRAWINGSAND SPECIFICATIONS.

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FOUNDATION PLAN - SUBJECT TO STRUCTURAL ENGINEER'S DETAIL 1:50

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450x450mm ground beams to have adequate bearing each side of walls

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Pile sizes and locations indicative. Piles to contractor's design.

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150mm block and beam with min. 300mm void below.

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150mm block and beam with min. 300mm void below

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2 courses starter blockwork for block and beam floor

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P/A=0.73

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PROPOSED ANNEXEROOF PLAN

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ROOF PLAN - SUBJECT TO STRUCTURAL ENGINEER'S DETAIL 1:50

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Joist calculations to be forwarded to building control

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Wet Room (6.5m / 70ft )2/ 70ft )2)

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Bedroom (13.8m / 149ft )2/ 149ft )2)

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Living Room/ Kitchen (19.4m / 209ft )2/ 209ft )2)

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SVP

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GROUND FLOOR PLAN - SUBJECT TO STRUCTURAL ENGINEER'S DETAIL 1:50

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timber partitions to be 90x47mm studwork with 12.5mm plasterboard and skim finish

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Extract

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Extract

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Carbon monoxide detector installed

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smoke detector

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650

650

Dashed lines denoteinternal partitions

300mm min compacted hardcore base. Fillmaterial to contain nothing larger than100mm and be well graded inert fillwithout hazardous materials.

120mm Celotex XR4000 insulationto be installed to top of floorslab - 25mm of perimeter edgeinsulation.

125mm concrete ground bearing slab, GEN 3grade mix - if required reinforce concreteslab with A142 200x200mm wire mesh toprevent cracking.

500 gauge polythene vapourbarrier to be laid to top ofinsulation. UFH pipes to be laidthroughout above insulation and65mm screed to be poured.

Pad foundations for oak postto structural engineer's design.Calculations to be forwarded tobuilding control.

STRIP FOUNDATIONProvide 225mm x 600mm concrete foundation, concrete mix to conform toBS EN 206-1 and BS 8500-2. All foundations to be a minimum of 1000mmbelow ground level, exact depth to be agreed on site with Building ControlOfficer to suit site conditions. All constructed in accordance with 2004Building Regulations A1/2 and BS 8004:1986 Code of Practice forFoundations. Ensure foundations are constructed below invert level of anyadjacent drains. Base of foundations supporting internal walls to be min600mm below ground level. Sulphate resistant cement to be used ifrequired. Please note that should any adverse soil conditions be found orany major tree roots in excavations, the Building Control Officer is to becontacted and the advice of a structural engineer should be sought.

EXISTING STRUCTUREExisting structure including foundations, beams, walls and lintels carryingnew and altered loads are to be exposed and checked for adequacy priorto commencement of work and as required by the Building Control Officer.

SOLID FLOOR INSULATION OVER SLABTo meet min U value required of 0.18 W/m²KSolid ground floor to consist of 150mm consolidated well-rammed hardcore.Blinded with 50mm sand blinding. Provide 100mm ST2 or Gen2 groundbearing slab concrete mix to conform to BS 8500-2 over a 1200 gaugepolythene DPM. DPM to be lapped in with DPC in walls. Floor to beinsulated over slab and DPM with min 90mm thick Celotex FR5000.25mm insulation to continue around floor perimeters to avoid thermalbridging. A VCL should be laid over the insulation boards and turned up100mm at room perimeters behind the skirting, all joints to be lapped150mm and sealed. Finish with 65mm sand/cement finishing screed with lightmesh reinforcement.Where drain runs pass under new floor, provide A142 mesh 1.0m wide andmin 50mm concrete cover over length of drain.

WALLS BELOW GROUNDAll new walls to have Class A blockwork below ground level oralternatively semi engineering brickwork in 1:4 masonry cement or equalapproved specification. Cavities below ground level to be filled with leanmix concrete min 225mm below damp proof course. Or provide lean mixbackfill at base of cavity wall (150mm below damp course) laid to fall toweepholes.

DPCProvide horizontal strip polymer (hyload) damp proof course to bothinternal and external skins minimum 150mm above external ground level.New DPC to be made continuous with existing DPC’s and with floor DPM.Vertical DPC to be installed at all reveals where cavity is closed.

CDM REGULATIONS 2015The client must abide by the Construction Design and ManagementRegulations 2015. The client must appoint a contractor, if more than onecontractor is to be involved, the client will need to appoint (in writing) aprincipal designer (to plan, manage and coordinate the planning and designwork) and a principal contractor (to plan, manage and coordinate theconstruction and ensure there are arrangements in place for managing andorganising the project).

Domestic clientsThe domestic client is to appoint a principal designer and a principalcontractor when there is more than one contractor, if not your duties willautomatically transferred to the contractor or principal contractor.

The designer can take on the duties, provided there is a writtenagreement between you and the designer to do so.

The Health and Safety Executive is to be notified as soon as possiblebefore construction work starts if the works:

(a) Last longer than 30 working days and has more than 20 workersworking simultaneously at any point in the project.Or:(b) Exceeds 500 person days.

BASIC RADON PROTECTIONProvide a 1200g (300 um) radon membrane under floor slab lapped 300mmdouble welted and taped with gas proof tape at joints and service entrypoints. Carry membrane over cavity and provide suitable cavity tray andweep holes.

SITE INVESTIGATIONA survey of the site is to be carried out by a suitably qualified personincluding an initial ground investigation, a desk study and a walk oversurvey. A copy of all reports and surveys to be sent to building controlfor approval before works commence on site.Any asbestos, contaminated soil or lead paint found on the site is to beremoved by a specialist. Asbestos is to be dealt with in accordance withthe Control of Asbestos Regulations 2006.

SITE PREPARATIONGround to be prepared for new works by removing all unsuitable material,vegetable matter and tree or shrub roots to a suitable depth to preventfuture growth. Seal up, cap off, disconnect and remove existing redundantservices as necessary. Reasonable precautions must also be taken toavoid danger to health and safety caused by contaminants and groundgases e.g. landfill gases, radon, vapours etc on or in the ground covered,or to be covered by the building.

HEALTH AND SAFETYThe contractor is reminded of their liability to ensure due care, attentionand consideration is given in regard to safe practice in compliance with theHealth and Safety at Work Act 1974.

PROPOSED FOUNDATION PLAN - Subject to

Structural Engineer's details

SVP SVP SVP

INDICATIVE DRAINAGE RUNTO CONNECT TO PROPOSEDTREATMENT PLANT




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PROPOSED DWELLINGFOUNDATION PLAN

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838.

838.

838.

838.

838.

kitchen

dining area

feature fireplace

feature shelving

living room

bootroom

cpd

bathroom childrens bedroom

ward

robe

& d

esk

childrens bedroom

ward

robe

& d

esk

master bedroom

wardrobes

1680

6000

3380

2330

2330

3380

1100

18802280

1160

1810

6000

6485

3150

6000

porch

838.

wc

1080

90x38mm stud partitionslined both sides with12.5mmplasterboard with skimfinish throughout

1550 1200 2049 1112 804 630 1243 630 1319 1200 3463

15200

4766

1500

2253

1500

1180

1120

0

2130 2440 2130

6700

1825

1200

1810

4835

1548

1200

3952

6700

1606 1455 1200 1931 1200 1108

8500

Hearth to be constructedfrom non-combustiblematerial to be at least840x840mm and a depth ofat least 125mm

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CCarbon monoxidedetector installed

S Mains interlinkedsmoke detector

Mains interlinkedHEAT detector



SVP SVP SVP

Construction Notes

The builder is responsible for checking and verifying all dimensions, measurements,levels, drains/sewers and services locations prior to the commencement of any workswhatsoever and the manufacture of any purpose made components. Any discrepanciesare to be notified to the client immediately.

Site boundaries are to be agreed by all parties concerned prior to the commencementof any building work, and new work is to be constructed so as to cause no encroachmentof adjoining ownership.

Any work affecting or causing disturbance to adjoining property, to be carried out withthe written consent of adjoining owners.

The builder is also responsible for ensuring that all works carried out comply with therelevant Building Regulations and/or statutory requirements whether or not they arespecifically mentioned on the drawings/specifications.

All dimensions are in 'mm' unless otherwise specified.

NOTES :

1. Only line of walls below d.p.c. are shown on the foundation plan. The foundation plan is subject to site ground conditions, Structural Engineers design and N.H.B.C. approval.

2. Where services run under load bearing walls concrete lintels should be used.

3. Blockwork to internal doorways should be left 2 courses down to allow concrete to run continuously.

4. Only r.w.p.'s and s.v.p.'s shown on this plan. Drainage runs dependent on site conditions and should be to drainage drawing.

5. Blockwork to inner leaf of external doorways should be left 2 courses down to allow concrete to run into back of recessed soldier course to outer leaf, see details.

EXTRACT TO KITCHENKitchen to have mechanical ventilation with an extract rating of 60l/sec or30l/sec if adjacent to hob to external air, sealed to prevent entry ofmoisture. Internal doors should be provided with a 10mm gap below thedoor to aid air circulation. Ventilation provision in accordance with theDomestic Ventilation Compliance Guide. Intermittent extract fans to BS EN13141-4. Cooker hoods to BS EN 13141-3. All fixed mechanical ventilationsystems, where they can be tested and adjusted, shall be commissionedand a commissioning notice given to the Building Control Body.

EXTRACT TO UTILITY ROOMTo utility room provide mechanical ventilation ducted to external aircapable of extracting at a rate of 30 litres per second. Internal doorsshould be provided with a 10mm gap below the door to aid air circulation.Ventilation provision in accordance with the Domestic VentilationCompliance Guide. Intermittent extract fans to BS EN 13141-4. All fixedmechanical ventilation systems, where they can be tested and adjusted,shall be commissioned and a commissioning notice given to the BuildingControl Body.

EXTRACT TO W/CW/C to have mechanical ventilation ducted to external air with an extractrating of 15l/s operated via the light switch. Vent to have a 15minoverrun if no window in room. Internal doors should be provided with a10mm gap below the door to aid air circulation. Ventilation provision inaccordance with the Domestic Ventilation Compliance Guide. Intermittentextract fans to BS EN 13141-4. All fixed mechanical ventilation systems,where they can be tested and adjusted, shall be commissioned and acommissioning notice given to the Building Control Body.

AIR PERMEABILITY AND PRESSURE TESTINGReasonable provision shall be made to ensure the extension is constructedto minimise unwanted air leakage through the new building fabric. The newdwelling to be pressure tested by a specialist registered with the BritishInstitute of Non-destructive Testing in compliance with Regulation 43 ofthe Building Regulations.The measured air permeability to be not worse than 5 m³/(h.m²) at 50 Paor in compliance with the TER design limits, ensuring the DER calculatedusing the measured air permeability is not worse than the TER.Where the dwelling is not to be tested an assessed air permeability tothe value of 15 m³/(h.m²) at 50 Pa is to be assumed for the purpose ofthe TER.If the required air permeability is not achieved, then remedial measuresshould be undertaken and a new test carried out until satisfactoryperformance is achieved.A copy of the test results to be sent building control no later than 7days after the test has been carried out.

PROVIDING INFORMATIONInformation about the fixed building services and their maintenance,including timing and temperature control settings, shall be provided to theowner of the dwelling on completion in compliance with Approved DocumentL1A.

BEAMSSupply and install all structural elements such as beams, roof structure,floor structure, bearings, and padstones in accordance with the StructuralEngineer's calculations and details. New steel beams to be encased in12.5mm Gyproc FireLine board with staggered joints, Gyproc FireCase orpainted in Nullifire S or similar intumescent paint to provide 1/2 hour fireresistance as agreed with Building Control. All fire protection to beinstalled as detailed by specialist manufacturer.

TIMBER FRAME WALLTo achieve minimum U Value of 0.21W/m²K102mm facing brick to match existing with 50mm vented and drained cavitytied to breathable membrane (having a vapour resistance of not more than0.6 MNs/g) and 12mm thick WBP external quality plywood sheathing (orother approved). Ply fixed to treated timber frame studs constructedusing 150mm x 50mm treated timbers with head & sole plates and verticalstuds (with noggins) at 400mm ctrs, or to s/engineer's details &calculations. Insulation to be 120mm Kingspan Thermawall TW55 betweenstuds with VLC and 32.5mm Kingspan Kooltherm insulated plasterboardover studs finished with 3mm skim coat of finishing plaster. All junctionsto have water tight construction, seal all perimeter joints with tapeinternally and with silicon sealant externally.

INTERNAL STUD PARTITIONS90mm x 50mm softwood treated timbers studs at 400mm ctrs with 38 x90mm head and sole plates and solid intermediate horizontal noggins at1/3 height or 450mm. Provide min 10kg/m³ density acoustic soundproofquilt tightly packed (e.g. 100mm Rockwool or Isowool mineral fibre soundinsulation) in all voids the full depth of the stud. Partitions built offdoubled up joists where partitions run parallel or provide noggins whereat right angles, or built off DPC on thickened concrete slab if solid groundfloor. Walls faced throughout with 12.5mm plaster board with skim plasterfinish. Taped and jointed complete with beads and stops.

ELECTRICALAll electrical work required to meet the requirements of Part P (electricalsafety) must be designed, installed, inspected and tested by a competentperson registered under a competent person self certification scheme suchas BRE certification Ltd, BSI, NICEIC Certification Services or Zurich Ltd.An appropriate BS7671 Electrical Installation Certificate is to be issued forthe work by a person competent to do so. A copy of a certificate will begiven to Building Control on completion.

INTERNAL LIGHTINGInternal energy efficient light to be fitted as calculated in the DER and incompliance with the Domestic Building Services Compliance Guide. Providelow energy light fittings not less than three per four (excludinginfrequently accessed spaces used for storage, such as cupboards andwardrobes). Low energy light fittings should have lamps with a luminousefficacy greater than 45 lamp lumens per circuit-watt and a total outputgreater than 400 lamp lumens. Fixed internal lighting to be pin basedfluorescent or compact fluorescent lamps or low energy bayonet or Edisonscrew base compact florescent lamps.

HEARTHS AND FIREPLACES FOR WOOD BURNING STOVE (with recess)Fireplace walls to consist of non-combustible material of minimum 200mmthickness to the side, 100mm thick in the back wall recess, lined withsuitable fire bricks.Hearth to be of non-combustible material minimum 125mm thickness with nocombustible material within 250mm.Hearth to have projections extending outwards (to the sides) at least150mm from the sides of the jambs and extending forwards at least500mm from the front of the jambs.Hearth also to extend 150mm outwards (to the sides) from the sides ofthe appliance and to extend forwards at least 300mm from the front ofthe appliance. Stoves to be 50mm minimum away from walls.Boundary of hearth to be visually apparent.

WOOD BURNING STOVEEnsure the wood burning stove is installed by an APHC, HETAS, NAPIT orNICEIC accredited specialist in compliance with Part J. Supply a suitableflue, hearth and CO / Carbon Monoxide alarm and provide ventilation toensure the necessary combustion air and to prevent the depletion ofoxygen in the room. There must not be an extractor fan fitted in thesame room as the stove. A notice plate giving operating and maintenanceinstructions must be provided and fixed in an obvious place and the Part Jinstallation checklist is to be completed and a copy given to BuildingControl.

SOIL AND VENT PIPE Svp to be extended up in 110mm dia UPVC and toterminate min 900mm above any openings within 3m. Provide a long radiusbend at foot of SVP. Internal soil vent pipes to be wrapped in 25mmunfaced mineral fibre and enclosed in minimum two layers of 12.5mmplasterboard (15g/m² mass per unit area) to provide adequate soundproofing. Soil and vent passing through floors to be enclosed in ductscomprising of timber framing faced with fire line plasterboard to achievehalf hour fire resistance. All ducts to be fire stopped at floor levels usingmineral wool quilt packing.

PROPOSED GROUND FLOOR PLAN - Subject

to Structural Engineer's details

AA

P/A = 0.437

NOTE:ALL SVPS TO BE FULLY BOXED AROUND AND INSULATED

NOTE:ALL DIMENSIONS ARE FROM MASONRY TO MASONRY OR FROMMASONRY TO FINISHED STUD PARTITION.ALL INTERNAL ROOM SIZES ARE MINIMUM FINISHED SIZES

allowing for a 12.5 board with 2.5mm skim finish

NOTE:LOW ENERGY LIGHT FITTINGS TO BE PROVIDED AT ALL LIGHTFITTINGS

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PROPOSED DWELLINGGROUND FLOOR PLAN

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- allowing for a 12.5 board with 2.5mm skim finish

porch

Steel beam to structural engineer'sdesign. Calculations to be forwarded tobuilding control.

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Joists doubled up for framing to futurestaircase

Dashed lines denote intermediatesupport from internal partitions below



PROPOSED JOIST PLAN - Subject to


400 400 400

ESCAPE WINDOWSProvide emergency egress windows to any newly created first floorhabitable rooms and ground floor inner rooms. Windows to have anunobstructed openable area of 450mm high x 450mm wide, minimum 0.33msq, the bottom of the openable area should be not more than 1100mmabove the floor. The window should enable the person to reach a placefree from danger from fire.

FIRE SUPPRESSION SYSTEMResidential Automatic Fire Suppression Systems to be designed andinstalled to BS 9251 and 9252 and to have been tested for use indomestic properties. System to cover the whole dwelling except bathroomsunder 5m², cupboards under 2m² and concealed voids. Maintenance ofsystem and information to be given to property owners in accordance withapproved document B.

ROOF LIGHTSMin U-value of 1.6 W/m²K.Roof-lights to be double glazed with16mm argon gap and soft low-E glass.Window Energy Rating to be Band C or better. Roof lights to be fitted inaccordance with manufacturer's instructions with rafters doubled up tosides and suitable flashings etc.

SAFETY GLAZINGAll glazing in critical locations to be toughened or laminated safety glassto BS 6206, BS EN 14179 or BS EN ISO 12543-1:2011 and Part K (Part N inWales) of the current building regulations. i.e. within 1500mm above floorlevel in doors and side panels within 300mm of door opening and within800mm above floor level in windows.

WINDOWSWindows to be double glazed with 16mm argon gap and soft coat low-Eglass. Window Energy Rating to be Band C or better and to achieveU-value of 1.6 W/m²K.

DOORSDoors to achieve a U-Value of 1.80W/m²K. Glazed areas to be doubleglazed with 16mm argon gap and soft low-E glass. Glass to be toughenedor laminated safety glass to BS 6206, BS EN 14179 or BS EN ISO12543-1:2011 and Part K (Part N in Wales) of the current BuildingRegulations.

Notes:

All joists @ 400 ctrs.

Triple up joists below partitions.

For timber to timber connections use 'Jiffy' joist hangers.

22mm Grade P5 moisture resistant chipboard on C16 softwood joists@ 400 ctrs. Chipboard pre-drilled and screwed @ 300 ctrs. aroundboard perimeter and at 500 ctrs. on intermediate supports. All jointsto be glued with Unibond Universal Adhesive.

STAIRSDimensions to be checked and measured on site prior to fabrication ofstairs. Timber stairs to comply with BS585 and with Part K of the BuildingRegulations. Max rise 220mm, min going 220mm. Two risers plus one goingshould be between 550 and 700mm. Tapered treads to have going in centreof tread at least the same as the going on the straight. Min 50mm goingof tapered treads measured at narrow end. Pitch not to exceed 42degrees. The width and length of every landing should be at least asgreat as the smallest width of the flight. Doors which swing across alanding at the bottom of a flight should leave a clear space of at least400mm across the full width of the flight. Min 2.0m headroom measuredvertically above pitch line of stairs and landings. Handrail on staircase tobe 900mm above the pitchline, handrail to be at least one side if stairsare less than 1m wide and on both sides if they are wider. Ensure a clearwidth between handrails of minimum 600mm. Balustrading designed to beunclimbable and should contain no space through which a 100mm spherecould pass. Allow for all structure as designed by a Structural Engineer.

INTERMEDIATE FLOORSIntermediate floor to be 25mm t&g flooring grade chipboard or floorboardslaid on C24 joists at 400mm cts (see engineer's calculation for sizes anddetails). Lay 100mm Rockwool mineral fibre quilt insulation min 10kg/m³ orequivalent between floor joists. Ceiling to be 12.5 Gyproc FireLineplasterboard with skim plaster set and finish. Joist spans over 2.5m to bestrutted at mid span using 38 x 38mm herringbone strutting or 38mm solidstrutting (at least 2/3 of joist depth). In areas such as kitchens, utilityrooms and bathrooms, flooring to be moisture resistant grade inaccordance with BS7331:1990. Identification marking must be laid upper mostto allow easy identification. Provide lateral restraint where joists runparallel to walls, floors are to be strapped to walls with 1000mm x 30mmx 5mm galvanised mild steel straps or other approved in compliance withBS EN 845-1 at max 2.0m centres, straps to be taken across minimum 3no. joists. Straps to be built into walls. Provide 38mm wide x ¾ depthsolid noggins between joists at strap positions.

100mm sound insulation to be installedbetween floors

Take care - manual handling ofheavy joists.

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Take care - working at height Take care - working at height

PROPOSED ROOF PLAN - Subject to


Note.Ventilation at eaves should be at least equal to a continuous strip 10mm widewhere the roof is pitched with a horizontal ceiling.

Ventilation at eaves should be at least equal to a continuous strip 25mm widewhere the ceiling follows the pitch of the roof. Additionally, ventilation at the ridgelevel should be at least equal to a continuous strip 5mm wide.A void of 50mm should be maintained between the underside of the roof coveringand the insulation.

PITCHED ROOF Pitched roof to be formed using proprietary prefabricatedmanufactured trusses. Design of roof trusses to be produced by specialisttruss manufacturer to BS EN 595:1995 and submitted to Building Control forapproval prior to commencement of work. Trusses to be placed at max600ctrs in accordance with BS 8103-3:2009 and BS EN 1995-1 on suitablydesigned reinforced concrete pad stones. All strapping, fixing and bracing tobe in accordance with manufacturer's instructions. Mechanically fix trusses to100 x 50mm sw treated wall plates using galvanized steel truss clips. Formceiling using 12.5mm plasterboard and min 3mm thistle multi-finish plaster andlay 150mm Rockwool insulation between ceiling joists with a further 170mmlayer over joists (cross direction). Provide polythene vapour barrier betweeninsulation and plasterboard. Ensure opening at eaves level at least equal tocontinuous strip 25mm wide in two opposite sides to promotecross-ventilation. Mono pitched roofs to have ridge/high level ventilationequivalent to a 5mm gap via proprietary tile vents spaced in accordance withmanufacturer's details.

LEAD WORK AND FLASHINGS All lead flashings, any valleys or soakers to beCode 5 lead and laid according to Lead Development Association. Flashings tobe provided to all jambs and below window openings with welded upstands.Joints to be lapped min 150mm and lead to be dressed 200mm under tiles, etc.All work to be undertaken in accordance with the Lead DevelopmentAssociation recommendations. LEAD VALLEYS Lead-lined valleys to be formedusing Code 5 lead sheet. Valley lead and two tiling fillets to be supported onmin 19mm thick and 225mm wide marine ply valley boards on either side of therafters. Lead to be laid in lengths not exceeding 1.5m with min 150mm lapjoints and be dressed 200mm under the tiles. Roofing tiles to be bedded inmortar placed on a tile slip to prevent direct contact. Valley to have aminimum 100mm wide channel (125mm minimum for pitches below 30°). All workto be in accordance with the roof cladding manufacturers and the LeadDevelopment Association recommendations.

RAINWATER DRAINAGE Rainwater goods to be new 110mm UPVC half roundgutters taken and connected into 68mm dia UPVC downpipes. Rainwater takento new soakaway, situated a min distance of 5.0m away from any building, via110mm dia UPVC pipes surrounded in 150mm granular fill. Soakaway to be minof 1 cubic metre capacity (or to depth to Local Authorities approval) withsuitable granular fill with geotextile surround to prevent migration of fines. Ifnecessary carry out a porosity test to determine design and depth ofsoakaway.

Trusses calculations to beforwarded to building controlonce manufacturer has beenappointed

PITCHED ROOF VENTILATION Maintain a 50mm air gap above insulation inthe roof pitch to ventilate roof. Provide opening at eaves level at leastequal to continuous strip 25mm wide and opening at ridge equal tocontinuous strip 5mm wide to promote ventilation. THERMAL BRIDGING Careshall be taken to limit the occurrence of thermal bridging in the insulationlayers caused by gaps within the thermal element, (i.e. around windows anddoor openings). Reasonable provision shall also be made to ensure thedwelling is constructed to minimise unwanted air leakage through the newbuilding fabric.

MATERIALS AND WORKMANSHIP All works are to be carried out in aworkmanlike manner. All materials and workmanship must comply withRegulation 7 of the Building Regulations, all relevant British Standards,European Standards, Agreement Certificates, Product Certification ofSchemes (Kite Marks) etc. Products conforming to a European technicalstandard or harmonised European product should have a CE marking.




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PROPOSED DWELLINGROOF PLAN

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back porch

300mm min compacted hardcore base. Fillmaterial to contain nothing larger than100mm and be well graded inert fillwithout hazardous materials.

90mm Celotex GA4000 insulation tobe installed to top of floor slab -25mm of perimeter edge insulation.

125mm concrete ground bearing slab, GEN 3grade mix - if required reinforce concreteslab with A142 200x200mm wire mesh toprevent cracking.

500 gauge polythene vapourbarrier to be laid to top ofinsulation. UFH pipes to be laidthroughout above insulation and65mm screed to be poured.

P/A = 0.452

STRIP FOUNDATIONProvide 225mm x 650mm concrete foundation, concrete mix to conform toBS EN 206-1 and BS 8500-2. All foundations to be a minimum of 1000mmbelow ground level, exact depth to be agreed on site with Building ControlOfficer to suit site conditions. All constructed in accordance with 2004Building Regulations A1/2 and BS 8004:1986 Code of Practice forFoundations. Ensure foundations are constructed below invert level of anyadjacent drains. Base of foundations supporting internal walls to be min600mm below ground level. Sulphate resistant cement to be used ifrequired. Please note that should any adverse soil conditions be found orany major tree roots in excavations, the Building Control Officer is to becontacted and the advice of a structural engineer should be sought.

EXISTING STRUCTUREExisting structure including foundations, beams, walls and lintels carryingnew and altered loads are to be exposed and checked for adequacy priorto commencement of work and as required by the Building Control Officer.

SOLID FLOOR INSULATION OVER SLABTo meet min U value required of 0.18 W/m²KSolid ground floor to consist of 150mm consolidated well-rammed hardcore.Blinded with 50mm sand blinding. Provide 100mm ST2 or Gen2 groundbearing slab concrete mix to conform to BS 8500-2 over a 1200 gaugepolythene DPM. DPM to be lapped in with DPC in walls. Floor to beinsulated over slab and DPM with min 80mm thick Celotex GA4000.25mm insulation to continue around floor perimeters to avoid thermalbridging. A VCL should be laid over the insulation boards and turned up100mm at room perimeters behind the skirting, all joints to be lapped150mm and sealed. Finish with 65mm sand/cement finishing screed with lightmesh reinforcement.Where drain runs pass under new floor, provide A142 mesh 1.0m wide andmin 50mm concrete cover over length of drain.

WALLS BELOW GROUNDAll new walls to have Class A blockwork below ground level oralternatively semi engineering brickwork in 1:4 masonry cement or equalapproved specification. Cavities below ground level to be filled with leanmix concrete min 225mm below damp proof course. Or provide lean mixbackfill at base of cavity wall (150mm below damp course) laid to fall toweepholes.

DPCProvide horizontal strip polymer (hyload) damp proof course to bothinternal and external skins minimum 150mm above external ground level.New DPC to be made continuous with existing DPC’s and with floor DPM.Vertical DPC to be installed at all reveals where cavity is closed.

Pad foundations for posts to porchto structural engineer's design.Calculations to be forwarded tobuilding control.

Pad foundations for posts to porchto structural engineer's design.Calculations to be forwarded tobuilding control.

150mm starter blockwork forstudwork structural wall.

CDM REGULATIONS 2015The client must abide by the Construction Design and ManagementRegulations 2015. The client must appoint a contractor, if more than onecontractor is to be involved, the client will need to appoint (in writing) aprincipal designer (to plan, manage and coordinate the planning and designwork) and a principal contractor (to plan, manage and coordinate theconstruction and ensure there are arrangements in place for managing andorganising the project).

Domestic clientsThe domestic client is to appoint a principal designer and a principalcontractor when there is more than one contractor, if not your duties willautomatically transferred to the contractor or principal contractor.

The designer can take on the duties, provided there is a writtenagreement between you and the designer to do so.

The Health and Safety Executive is to be notified as soon as possiblebefore construction work starts if the works:

(a) Last longer than 30 working days and has more than 20 workersworking simultaneously at any point in the project.Or:(b) Exceeds 500 person days.

BASIC RADON PROTECTIONProvide a 1200g (300 um) radon membrane under floor slab lapped 300mmdouble welted and taped with gas proof tape at joints and service entrypoints. Carry membrane over cavity and provide suitable cavity tray andweep holes.

SITE INVESTIGATIONA survey of the site is to be carried out by a suitably qualified personincluding an initial ground investigation, a desk study and a walk oversurvey. A copy of all reports and surveys to be sent to building controlfor approval before works commence on site.Any asbestos, contaminated soil or lead paint found on the site is to beremoved by a specialist. Asbestos is to be dealt with in accordance withthe Control of Asbestos Regulations 2006.

SITE PREPARATIONGround to be prepared for new works by removing all unsuitable material,vegetable matter and tree or shrub roots to a suitable depth to preventfuture growth. Seal up, cap off, disconnect and remove existing redundantservices as necessary. Reasonable precautions must also be taken toavoid danger to health and safety caused by contaminants and groundgases e.g. landfill gases, radon, vapours etc on or in the ground covered,or to be covered by the building.

HEALTH AND SAFETYThe contractor is reminded of their liability to ensure due care, attentionand consideration is given in regard to safe practice in compliance with theHealth and Safety at Work Act 1974.

Construction Notes

The builder is responsible for checking and verifying all dimensions, measurements,levels, drains/sewers and services locations prior to the commencement of any workswhatsoever and the manufacture of any purpose made components. Any discrepanciesare to be notified to the client immediately.

Site boundaries are to be agreed by all parties concerned prior to the commencementof any building work, and new work is to be constructed so as to cause no encroachmentof adjoining ownership.

Any work affecting or causing disturbance to adjoining property, to be carried out withthe written consent of adjoining owners.

The builder is also responsible for ensuring that all works carried out comply with therelevant Building Regulations and/or statutory requirements whether or not they arespecifically mentioned on the drawings/specifications.

All dimensions are in 'mm' unless otherwise specified.






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838.

838.

838.

kitchen

dining/day room

lounge

hall

686.

cpd

bootroom/laundry

wc

study

back porch



SVP

Steel beams to providesupport to gable above. Design andconnection details to beprovided by structural engineerand calculations forwardedto building control.

140x38mm structural stud partition to provide midspansupport to joists lined both sides with 12.5mmplasterboard with skim finish.

Hearth to be constructedfrom non-combustiblematerial to be at least840x840mm and a depth ofat least 125mm

6700

1850

3000

1850

3350965 1770 615 50

0

3350

500

10700

1577 1200 1577 1120 1797 1200 623 630 976

4250

1700

1750

3000

900

350

750

3750

990 1770 13401340 1770 9903750

1000

3200

200

600

200 322

322 325

Steel beam to structuralengineer's design.

CCarbon monoxidedetector installed

Mechanicalextract



Extract fan

AA

Chimney to be 100mmblockwork with100mm cavityinsulated withCelotex insulationsimilar with 50mm airgap. Outer leaf tobe 150mm stonework.




COLD WATER SUPPLYThere must be a suitable installation for the provision of a wholesomewater supply in accordance with Approved Document G. Cold water supplyto be provided to washbasins, bidets, baths, WCs, showers, any place whendrinking water is drawn off and to any sink provided in areas where foodis prepared.Supply of cold water to comply with section 67 of the water industry act1991 and the Water Supply Regulations 2000.

HOT WATER SUPPLYAll bathrooms, washbasins, bidet, baths and showers to be provided withadequate hot and cold water supply in accordance with Approved DocumentG3. Washbasin with hot and cold water supply to be provided in oradjacent to all rooms containing a WC. A sink with hot and cold wateralso to be provided to any area where food is being prepared.

CONTROL OF WATER TEMPERATUREThe installation of the hot water supply to comply with ApprovedDocument G3. All baths and showers are to be fitted with an inlinethermostatic mixing valve to ensure that the temperature of the waterdelivered to the bath is limited to 48°C.

HOT WATER STORAGE SYSTEMSHot water storage systems should be designed and installed in accordancewith BS 12897 2006. Hot water vessels, cisterns etc and must beadequately supported.Any hot water storage system including any cistern or other vessel shallincorporate precautions to ensure suitable pressure relief and that anydischarge from any safety devices is safely conveyed to where it isvisible but will not cause harm to persons in or about the building.Precautions to be in place to prevent stored water stored exceeding100°C. Hot water vessels to be fitted with a non self resetting energy cutout to instantly disconnect the power supply.Outlets from domestic hot water storage vessels to be fitted with an inline valve to prevent water temperatures exceeding 60°C. All pipescarrying hot water to be insulated where they pass through unheatedspaces. Hot water storage system to be provided with suitable warninglabels. Relevent certificates for the heating system i.e. Benchmarkcertificate, and commissioning certificates for fixed building services are tobe given to the building owner and a copy provided to Building Control oncompletion.PROPOSED GROUND FLOOR PLAN - Subject


EXTRACT TO KITCHENKitchen to have mechanical ventilation with an extract rating of 60l/sec or30l/sec if adjacent to hob to external air, sealed to prevent entry ofmoisture. Internal doors should be provided with a 10mm gap below thedoor to aid air circulation. Ventilation provision in accordance with theDomestic Ventilation Compliance Guide. Intermittent extract fans to BS EN13141-4. Cooker hoods to BS EN 13141-3. All fixed mechanical ventilationsystems, where they can be tested and adjusted, shall be commissionedand a commissioning notice given to the Building Control Body.

EXTRACT TO UTILITY ROOMTo utility room provide mechanical ventilation ducted to external aircapable of extracting at a rate of 30 litres per second. Internal doorsshould be provided with a 10mm gap below the door to aid air circulation.Ventilation provision in accordance with the Domestic VentilationCompliance Guide. Intermittent extract fans to BS EN 13141-4. All fixedmechanical ventilation systems, where they can be tested and adjusted,shall be commissioned and a commissioning notice given to the BuildingControl Body.

EXTRACT TO W/CW/C to have mechanical ventilation ducted to external air with an extractrating of 15l/s operated via the light switch. Vent to have a 15minoverrun if no window in room. Internal doors should be provided with a10mm gap below the door to aid air circulation. Ventilation provision inaccordance with the Domestic Ventilation Compliance Guide. Intermittentextract fans to BS EN 13141-4. All fixed mechanical ventilation systems,where they can be tested and adjusted, shall be commissioned and acommissioning notice given to the Building Control Body.

AIR PERMEABILITY AND PRESSURE TESTINGReasonable provision shall be made to ensure the extension is constructedto minimise unwanted air leakage through the new building fabric. The newdwelling to be pressure tested by a specialist registered with the BritishInstitute of Non-destructive Testing in compliance with Regulation 43 ofthe Building Regulations.The measured air permeability to be not worse than 5 m³/(h.m²) at 50 Paor in compliance with the TER design limits, ensuring the DER calculatedusing the measured air permeability is not worse than the TER.Where the dwelling is not to be tested an assessed air permeability tothe value of 15 m³/(h.m²) at 50 Pa is to be assumed for the purpose ofthe TER.If the required air permeability is not achieved, then remedial measuresshould be undertaken and a new test carried out until satisfactoryperformance is achieved.A copy of the test results to be sent building control no later than 7days after the test has been carried out.

PROVIDING INFORMATIONInformation about the fixed building services and their maintenance,including timing and temperature control settings, shall be provided to theowner of the dwelling on completion in compliance with Approved DocumentL1A.

BEAMSSupply and install all structural elements such as beams, roof structure,floor structure, bearings, and padstones in accordance with the StructuralEngineer's calculations and details. New steel beams to be encased in12.5mm Gyproc FireLine board with staggered joints, Gyproc FireCase orpainted in Nullifire S or similar intumescent paint to provide 1/2 hour fireresistance as agreed with Building Control. All fire protection to beinstalled as detailed by specialist manufacturer.

TIMBER FRAME WALLTo achieve minimum U Value of 0.21W/m²K20mm render on 100mm blockwork with 50mm vented and drained cavitytied to breathable membrane (having a vapour resistance of not more than0.6 MNs/g) and 12mm thick WBP external quality plywood sheathing (orother approved). Ply fixed to treated timber frame studs constructedusing 140mm x 38mm treated timbers with head & sole plates and verticalstuds (with noggins) at 400mm ctrs, or to s/engineer's details &calculations. Insulation to be 140mm Celotex XR4000 between studs withVLC and 20mm Celotex TB4000 within studs. 3mm skim coat of finishingplaster. All junctions to have water tight construction, seal all perimeterjoints with tape internally and with silicon sealant externally.

INTERNAL STUD PARTITIONS90mm x 50mm softwood treated timbers studs at 400mm ctrs with 38 x90mm head and sole plates and solid intermediate horizontal noggins at1/3 height or 450mm. Provide min 10kg/m³ density acoustic soundproofquilt tightly packed (e.g. 100mm Rockwool or Isowool mineral fibre soundinsulation) in all voids the full depth of the stud. Partitions built offdoubled up joists where partitions run parallel or provide noggins whereat right angles, or built off DPC on thickened concrete slab if solid groundfloor. Walls faced throughout with 12.5mm plaster board with skim plasterfinish. Taped and jointed complete with beads and stops.

ELECTRICALAll electrical work required to meet the requirements of Part P (electricalsafety) must be designed, installed, inspected and tested by a competentperson registered under a competent person self certification scheme suchas BRE certification Ltd, BSI, NICEIC Certification Services or Zurich Ltd.An appropriate BS7671 Electrical Installation Certificate is to be issued forthe work by a person competent to do so. A copy of a certificate will begiven to Building Control on completion.

INTERNAL LIGHTINGInternal energy efficient light to be fitted as calculated in the DER and incompliance with the Domestic Building Services Compliance Guide. Providelow energy light fittings not less than three per four (excludinginfrequently accessed spaces used for storage, such as cupboards andwardrobes). Low energy light fittings should have lamps with a luminousefficacy greater than 45 lamp lumens per circuit-watt and a total outputgreater than 400 lamp lumens. Fixed internal lighting to be pin basedfluorescent or compact fluorescent lamps or low energy bayonet or Edisonscrew base compact florescent lamps.

6000

2985

3630

2355

4475

3630

1175

3630

4475

1548

8352800

2355

4630

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6000

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Tyvek or similar breathablemembrane to be installed toroof covering.

DPM

12.5mm plasterboard and skim20mm Celotex TB4000140mm Celotex XR4000OSB3breather membrane60mm cavity

2000g Polythene DPM to be taken upto DPC and across cavity, all junctionthen being fully sealed with aproprietary DPM tape.

DPM is to be carried through to outerleaf of brickwork as low level radonprotection, with continuous dpc cavitytray over.

35°

TIMBER FRAME PANEL CONSTRUCTION

140x38mm preservative softwood studworkto form panels.

140mm void to be filled with 140mm Celotex XR4000 orsimilarapproved insulation.

12mm OSB boarding, lined with breather membranefitted using polypropylene tape and stainlesssteel staples

PROPOSED TYPICAL SECTION A-A - Subject to Structural Engineer's details

Trusses calculations to beforwarded to buildingcontrol once manufacturerhas been appointed.

120mm Celotex XR4000between rafters, 50mmCelotex GA4000 below orsimilar approved

Corbelled brickworkat eaves

100mm sound insulationbetween floors




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back porch

4475

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max

. cle

arsp

an

2355400

400

Intermediate span support to joists from140x38mm structural stud wall below.

Joists doubled upfor support to parallel partitionsabove.

VOID FORSTAIRCASE


Take care - working at heightA

A


PROPOSED JOIST PLAN - Subject to





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AA

PITCHED ROOF VENTILATION Maintain a 50mm air gap above insulation inthe roof pitch to ventilate roof. Provide opening at eaves level at leastequal to continuous strip 25mm wide and opening at ridge equal tocontinuous strip 5mm wide to promote ventilation. THERMAL BRIDGING Careshall be taken to limit the occurrence of thermal bridging in the insulationlayers caused by gaps within the thermal element, (i.e. around windows anddoor openings). Reasonable provision shall also be made to ensure thedwelling is constructed to minimise unwanted air leakage through the newbuilding fabric.

MATERIALS AND WORKMANSHIP All works are to be carried out in aworkmanlike manner. All materials and workmanship must comply withRegulation 7 of the Building Regulations, all relevant British Standards,European Standards, Agreement Certificates, Product Certification ofSchemes (Kite Marks) etc. Products conforming to a European technicalstandard or harmonised European product should have a CE marking.

Note.Ventilation at eaves should be at least equal to a continuous strip 10mm widewhere the roof is pitched with a horizontal ceiling.

Ventilation at eaves should be at least equal to a continuous strip 25mm widewhere the ceiling follows the pitch of the roof. Additionally, ventilation at the ridgelevel should be at least equal to a continuous strip 5mm wide.A void of 50mm should be maintained between the underside of the roof coveringand the insulation.

PITCHED ROOF Pitched roof to be formed using proprietary prefabricatedmanufactured trusses. Design of roof trusses to be produced by specialisttruss manufacturer to BS EN 595:1995 and submitted to Building Control forapproval prior to commencement of work. Trusses to be placed at max600ctrs in accordance with BS 8103-3:2009 and BS EN 1995-1 on suitablydesigned reinforced concrete pad stones. All strapping, fixing and bracing tobe in accordance with manufacturer's instructions. Mechanically fix trusses to100 x 50mm sw treated wall plates using galvanized steel truss clips. Formceiling using 12.5mm plasterboard and min 3mm thistle multi-finish plaster andlay 150mm Rockwool insulation between ceiling joists with a further 170mmlayer over joists (cross direction). Provide polythene vapour barrier betweeninsulation and plasterboard. Ensure opening at eaves level at least equal tocontinuous strip 25mm wide in two opposite sides to promotecross-ventilation. Mono pitched roofs to have ridge/high level ventilationequivalent to a 5mm gap via proprietary tile vents spaced in accordance withmanufacturer's details.

LEAD WORK AND FLASHINGS All lead flashings, any valleys or soakers to beCode 5 lead and laid according to Lead Development Association. Flashings tobe provided to all jambs and below window openings with welded upstands.Joints to be lapped min 150mm and lead to be dressed 200mm under tiles, etc.All work to be undertaken in accordance with the Lead DevelopmentAssociation recommendations. LEAD VALLEYS Lead-lined valleys to be formedusing Code 5 lead sheet. Valley lead and two tiling fillets to be supported onmin 19mm thick and 225mm wide marine ply valley boards on either side of therafters. Lead to be laid in lengths not exceeding 1.5m with min 150mm lapjoints and be dressed 200mm under the tiles. Roofing tiles to be bedded inmortar placed on a tile slip to prevent direct contact. Valley to have aminimum 100mm wide channel (125mm minimum for pitches below 30°). All workto be in accordance with the roof cladding manufacturers and the LeadDevelopment Association recommendations.

RAINWATER DRAINAGE Rainwater goods to be new 110mm UPVC half roundgutters taken and connected into 68mm dia UPVC downpipes. Rainwater takento new soakaway, situated a min distance of 5.0m away from any building, via110mm dia UPVC pipes surrounded in 150mm granular fill. Soakaway to be minof 1 cubic metre capacity (or to depth to Local Authorities approval) withsuitable granular fill with geotextile surround to prevent migration of fines. Ifnecessary carry out a porosity test to determine design and depth ofsoakaway.



Trusses calculations to beforwarded to building controlonce manufacturer has beenappointed




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838.

838.Bedroom 1

familybathroom

Bedroom 2

Bedroom 3

838.

838.

838.

Bedroom 4

90x38mm stud partitions lined both sideswith 12.5mmplasterboard with skim finish throughout

Escape WindowEscape Window

Escape WindowEscape Window

7700

7700

3900876 1200 1824

39001605 1200 1095

37501625 1200

3750162512001275

2900200

650 1200 650200

850

200

450

200



SVPMechanicalextract

DETAILS FOR NEW STAIRCASEALL DIMS. IN mm:

STAIRWELL OPENING- 1048x3016mmSTOREY HEIGHT:- 2620mmRISE:-201.5mmGOING:-226mmWIDTH OVER STRINGER:- 851mm

AA

3750




STAIRSDimensions to be checked and measured on site prior to fabrication ofstairs. Timber stairs to comply with BS585 and with Part K of the BuildingRegulations. Max rise 220mm, min going 220mm. Two risers plus one goingshould be between 550 and 700mm. Tapered treads to have going in centreof tread at least the same as the going on the straight. Min 50mm goingof tapered treads measured at narrow end. Pitch not to exceed 42degrees. The width and length of every landing should be at least asgreat as the smallest width of the flight. Doors which swing across alanding at the bottom of a flight should leave a clear space of at least400mm across the full width of the flight. Min 2.0m headroom measuredvertically above pitch line of stairs and landings. Handrail on staircase tobe 900mm above the pitchline, handrail to be at least one side if stairsare less than 1m wide and on both sides if they are wider. Ensure a clearwidth between handrails of minimum 600mm. Balustrading designed to beunclimbable and should contain no space through which a 100mm spherecould pass. Allow for all structure as designed by a Structural Engineer.


Notes:

All joists @ 400 ctrs.

Triple up joists below partitions.

For timber to timber connections use 'Jiffy' joist hangers.

22mm Grade P5 moisture resistant chipboard on C16 softwood joists@ 400 ctrs. Chipboard pre-drilled and screwed @ 300 ctrs. aroundboard perimeter and at 500 ctrs. on intermediate supports. All jointsto be glued with Unibond Universal Adhesive.

PROPOSED FIRST FLOOR PLAN - Subject


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4154

3630

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surface stripped of organic material

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500g Polythene DPM to be taken up to DPC and across cavity, all junction then being fully sealed with a proprietary DPM tape.

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surface stripped of organic material

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12.5mm plasterboard and skim to form ceiling below joists

Un-reinforced edge thickened concreteslab to have minimum thickness of 100mm,minimum downstand thickness of 350mmbelow ground level around whole slabperimeter. Edge thickening to be a minimumof 300mm. Subject to structural engineer'sdesign.



catnic lintel or similar to Structural Engineer's design

PROPOSED FLOOR PLAN - Subject to


35°

Trusses calculations to be forwardedto building control once manufacturerhas been appointed.

Tyvek or similarbreathablemembrane to beinstalled to roofcovering.

12.5mm plasterboard with skim finish140mm void filled with Celotex or similar insulation12mm OSB sheathingbreather membrane

brickwork outer leaf140x38mm studwork

DPM

PROPOSED SECTION A-A - Subject to


100 stonework plinth


Trusses calculations to be forwarded to buildingcontrol once manufacturer has been appointed






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35°

Tyvek or similar breathablemembrane to be installed toroof covering.

Trusses calculations to beforwarded to buildingcontrol once manufacturerhas been appointed.

Pitched roof to be insulated with 120mm Celotex XR4000between rafters and Celotex GA4000 to the underside ofrafters with skim finish (50mm insulations + 12.5mmplasterboard). U Value 0.15w/m²°K.

100mm sound insulation between floors

TIMBER FRAME PANEL CONSTRUCTION

140x38mm preservative softwood studworkto form panels.

140mm void to be filled with 120mm Celotex XR4000 orsimilar approved insulation with 20mm Celotex TB4000inside studs.

12mm OSB boarding, lined with breather membranefitted using polypropylene tape and stainlesssteel staples

brickwork outer leaf

2000g Polythene DPM to be taken upto DPC and across cavity, all junctionthen being fully sealed with aproprietary DPM tape.

DPM is to be carried through to outerleaf of brickwork as low level radonprotection, with continuous dpc cavitytray over.

DPM above slab25mm perimeter edge insulation

see foundation plan for floor buildup

150mm stoneworkto form plinth

600

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