Ground Floor 1:100 - My Home My Plansmix to conform to BS EN 206-1 and BS 8500-2. All foundations to...

myhome

myplans

myhome

myplans

myhome

myplans

A2

PROJECT:

DRAWING TITLE:

DATE:

MY HOME MY PLANSALL DRAWINGS SUBJECT TO RELEVANTPLANNING AND BUILDING CONTROL APPROVAL

24FV-‐DRAWING SCALE:

XX FRENSHAM VALE, FARNHAM, GU10 XXX DRAWING REF:

DRAWING NO

STAGE: REVISION:

myhomemyplans myhomemyplans myhomemyplans

SAMPLEmyhomemyplans myhomemyplans myhomemyplans




myhomemyplan

h

omemyplans





0 1 2 5 10

G

E

IL 600

WC

StoreReception room

Kitchen

Dining

Lounge

GarageB

Bedroom 1

Bedroom 2

Bedroom 3

Bathroom

3,24

0

Rid

ge C

L

Existing roof structuretie beams, purlins andangled strutsconnected to centralbinder

Purlin

Rafters concealed. Assumed 100 x 50 @400ctrsFloor joists 100 x 50 @ 400ctrs

Chimney

Ground Floor 1:100

First Floor 1:100

1BC

EXISTING PLANS & ELEVATIONS

24.09.2012

Building Control

1:100 @ A2Loft plan 1:100

Roof plan 1:100EXISTING PLANS & ELEVATIONS


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0 1 2 5 10

1,70

0

+-0.00m

+2.615m

-0.50m

+5.335m

+-0.00m

+2.615m

-0.50m

+5.335m

40°26° Approx

40°

FFL

FFL

FFL

FFL

FFL

GL

FFL

FFL

FFL

GL

G

E

IL 600

WC

StoreReception room

Kitchen

Dining

Lounge

Garage

B

Decking

Utility

Bedroom 1

Bedroom 2

Bedroom 3

Bathroom

Bedroom

Utility(under stairs)

EnsuiteEnsuite

W-F2 W-F3 W-F4Walk in wardrobe

Master Bedroom

Storage

Loft plan 1:100

Roof plan 1:1002

BCPROPOSED PLANS & ELEVATIONS

Building Control

PROPOSED PLANS & ELEVATIONS

Ground Floor 1:100

First Floor 1:100

Rear Elevation

Side Elevation

Front Elevation

Side Elevation

24.09.2012 1:100 @ A2


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0 1 2 5

2,10

0

4,705

455

1,20

045

5

Eq 2,400 Eq

1,97

5

500

785

600

G

E

IL 600

WC

StoreReception room

Kitchen

Dining

Lounge

Garage

B

Decking

Utility

Existing RWP

Existing RWP

Existing RWP

Approx.

Existing wall removed

Flood Mitigation Strategies for extension:Tiled floor.Electrical sockets 600mm above finished floor level. All works in accordance with `Improving the floodperformance of new buildings' CLG (2007)

New MH.IL to suit

New MH.IL to suit

New Soil pipe.Vented through roof.

Steel/Crank beam design to engineers specification

Timber beam over window to engineers spec.

AA

B B

C

New beam over existinginternal skin to support newwider cavity wall above andadjacent beam, to engineersspec.

New beam above tosupport new insetwall above. Wallstepped in 500mmfrom existing. Beamto engineers designand specification.

Outline of wall above

Existing walls andfoundations to beexposed and checkedfor adequacy foradditional loading.

450 x 450 trenchfoundation, 225 x225mm brick plinthwith cant brick and150 x 150 timberpost.

Timber beam over to engineers spec.

D-G1

D-G2

FD30s. Self closingfire door. See notes.

Directed to soakaway min 5mfrom building or connected toexisting surface water drainage.Contractor to assess on site.

NEW RWP

Existing walls removed

Kitchen design TBC.


Existing beam above to be removed Existing beam above to be removed

Pillar to remain

New opening for decking. External steps tocomply with approved document K. Seenotes for details.

Garage ceiling uvalue toachieve 0.22 w/m2k.150mm rockwool betweenjoists, and a further 25mmcelotex TB4000 belowjoists, Ceilings to be12.5mm firelineplasterboard to achieve30mins fire resistance overvapour barrier with skimplaster finish.

C Proposed load bearing wall receivingbeam to engineers design.

Mechanical extraction, via shared ductingvented out through roof. Utility 30LS,Kitchen 60LS. Box in SVP and Extractionducts with 50 x 50 timber studs, full fillwith mineral wool and finished with12.5mm fireline plasterboard to achieve30mins fire resistance See notes for fullextraction details.

TIMBER STAIRCASE WALL BETWEEN HOUSEAND GARAGE To achieve minimum U Value of 0.28W/m²K Construct stud wall using 100mm x 50mm head andsole plates and vertical studs (with noggins) at400mm ctrs or to s/engineer's details andcalculations. Provide 60mm Celotex FR4000between studs and 37.5mm Celotex PL4000insulated plasterboard over with VCL fixed tointernal face of insulation and finished with 3mmskim coat of finishing plaster. Fix 12.5mm Gyproc FireLine plasterboard to theouter face of the stud wall. All junctions to havewater tight construction, seal all perimeter jointswith tape internally and with silicon sealantexternally. Note: These walls need to go full heightand be fire stopped against the roof or floor above.A lesser provision of insulation may be appropriatewhere meeting such a standard would result in areduction of more than 5% in the internal floor areaof the room.

Beam to engineers design

Engineer to confirm if returnscan be removed.

TRENCH FOUNDATIONProvide 750mm x 600mm trench fill foundations, concretemix to conform to BS EN 206-1 and BS 8500-2. Allfoundations to be a minimum of 1000mm below groundlevel, exact depth to be agreed on site with Building ControlOfficer to suit site conditions. All constructed in accordancewith 2004 Building Regulations A1/2 and BS 8004:1986Code of Practice for Foundations. Ensure foundations areconstructed below invert level of any adjacent drains. Baseof foundations supporting internal walls to be min 600mmbelow ground level. Sulphate resistant cement to be used ifrequired. Please note that should any adverse soilconditions or difference in soil type be found or any majortree roots in excavations, the Building Control Officer is tobe contacted and the advice of a structural engineer shouldbe sought.

D-G3FD20

W-G1

Suspended floor to be provided if conditions unsuitable forground bearing slab. TBC on site

3BC

1:50 @ A2

Ground Floor Plan

Building Control

GROUND FLOOR PLAN

24.09.2012

NOTES:Do not scale from these drawings.

This drawing is to be read in conjunction with allother relevant project drawings, schedules andnotes and is applicable whether specificallyreferred to or not.

The contractor is responsible for checking alldimensions on site prior to commencement of theworks with any errors being reported to AdaptArchitecture as soon as possible.

Any construction work carried out prior to receivingall necessary approval for planning and or buildingregulations is entirely at the householders/clientsrisk.

All building work to be completed to thesatisfaction of the Local Authority Building ControlOfficer in accordance with the current BuildingRegulations and as such additional unforeseenbuilding works may be required on site.

The contractor shall inspect all adjoining propertieswhich may be affected by the works prior tocommencement of works and record and report tothe owner any defects.

The contractor shall be entirely responsible for thesecurity, strength and stability of the buildingduring the course of the works.

Drawings produced for the purpose of BuildingRegulation approvals only and do not constitute fullworking drawings.

All drawings copyright myhomemyplans. Thisdrawing may not be copied by any third partieswithout prior permission from Adapt Architecture.


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0 1 2 5

7,085

3,870

7,27

0 A

ppro

x

Eq1 600 Eq2 1,050 Eq2 600 Eq1

800 1,710 Remainder 1,710 1,300

2,100 1,000

700

800

2,67

0 A

ppro

x

1000

1,80

0

800

Min

800

App

rox

3,02

0

Bedroom 1

Bedroom 2

Bedroom 3

Bathroom

Bedroom

Utility(under stairs)

Existing RWP

New drainage pipe connected at ground level.

Remove existing exterior wall

EnsuiteEnsuite

A

B B

A

New glazed area of Veranda. Raftersremoved and replaced with new sizesand spacing to engineers spec.

New RWP connected to existing downpipe

Approx.

Windows C/L to bedrooms

W-F1Escape window

Existing ceiling joist span direction.TBC


New bathroomspec TBC.

Wall may require slightangle to allow standarddoor fitted to bed 3.

W-F2 W-F3 W-F4

W-F5Escape window

W-F6Escape window

MEANS OF ESCAPE - Fire doorsForm a protected escape stairway by providing halfhour fire resistance to all partitions as well as floorsand ceilings above and below rooms. Stairway to beprotected at all levels - from the loft room/rooms thenleading directly to an external door at ground level (noinner rooms allowed). All doors on to the stairwaymust be FD20 rated fire doors to BS 476-22:1987(fitted with intumescent strips rebated around sides &top of door or frame if required by BCO). Whereapplicable, any glazing in fire doors to be half hour fireresisting and glazing in the walls forming the escaperoute enclosure to have 30 minutes fire resistance andbe at least 1.1m above the floor level or stair pitchline.

D-F1

D-F2

D-F3

D-F4

D-F5FD20

D-F6FD20

D-F7FD20

D-F8FD20

New staircase to loft. See notes

Line of existing wall below

New concealed soil pipe

Land

ing

RENDERED CAVITY WALLCavity of existing ground floor extension assumed65mm TBC on site.Specification based on 65mm cavity.To achieve minimum U Value of 0.28W/m²K20mm two coat sand/cement render to comply to BS5262 with waterproof additive on 100mm lightweightblock, K value 0.16, (Aircrete, Celcon Solar, TopblockToplite Standard). Fully fill the cavity with 65mmDritherm insulation batts in accordance withmanufacturer's spec. Inner leaf of 100mm Thermaliteblockwork with internal lining of Celotex PL4015insulated plasterboard dot and dab to wall. Walls to bebuilt with 1:1:6 cement mortar. Finish walls with 3mmskim plaster.If cavity is less than shown, contact Celotex toestablish correct insulation required. T: 01473 820 850

Direction of slope

CC

W-R6

W-R5

Mechanical extraction, viashared ducting vented outthrough roof. Utility 30LS,Shower room 15L/S. Seenotes for full extractiondetails.

4BC

1:50 @ A2

First Floor Plan

Building Control

FIRST FLOOR PLAN

24.09.2012











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0 1 2 5

1,80

0

1,800

Walls built to 1.5m height

Walk in wardrobe

Master Bedroom

Eaves storage

StorageR

idge

CL

Line

of e

xist

ing

purli

n

Door position intoeaves TBC withclient.

New

dra

inag

e ro

ute

New connectionto existing SVP

Mechanical extractionto ensuite. 15L/S,connected to lightswitch. Vented throughroof. See notes fordetails.

Remove existing gable

D-R1 Adequate Escape Opening.Toughened Glass doors withtoughened glass Juliet balcony1.1m from finished floor level.

D-R1

D-R2 D-R3

D-R4

D-R5

This area to be insulated as a clod roof between andover floor joists.

PITCHED ROOF INSULATION AT CEILING LEVELTo achieve U value of 0.16 W/m²KTimber roof structures to be designed by an Engineer inaccordance with NHBC Technical Requirement R5Structural Design. Calculations to be based on BS EN1995-1-1 and BS 5268-3. Roofing tiles to match existingon 25 x 38mm tanalised sw treated battens on sarkingfelt to BS747 supported on 47 x 170mm grade C24rafters at max 400mm centres max span 3.55m. Rafterssupported on 100 x 50mm sw wall plates. Insulation atceiling level to be 170mm Rockwool insulation laidbetween ceiling joists with a further 150mm layer overjoists (cross direction).Construct ceiling using sw joists at 400mm centres,finished internally with 12.5mm plasterboard and min3mm thistle multi-finish plaster. Provide polythenevapour barrier between insulation and plasterboard.Provide opening at eaves level at least equal tocontinuous strip 25mm wide in two opposite sides topromote cross-ventilation.

TIMBER FRAME WALLTo achieve minimum U Value of 0.28W/m²KTreated timber frame studs constructed using 100mm x 50mm head & sole platesand vertical studs (with noggins) at 400mm ctrs or to s/engineer's details &calculations. Insulation between and over studs; 100mm Kingspan ThermawallTW55 between plus VCL and 22mm Gyproc Thermaline plasterboard over. Finishwith 3mm skim coat of finishing plaster. All junctions to have water tightconstruction, seal all perimeter joints with tape internally and with silicon sealantexternally.

Loft hatch. Position TBC by Client.

Proposed ceiling joist span direction.

Proposed ceiling joist span direction.

Loadbaring timber stud wallbuilt directly below purlin.

Line

of e

xist

ing

purli

n

+1.5

m

+1.5

m

C/L of roof

Opaque Veluxrooflight above

W-R1

W-R1

W-R2

W-R3

W-R4

Proposed mechanical extraction,vented through roof

Existing Chimney

Ridge C/L

A

B B

A

This area to beinsulated as per mainroof, to enable sufficientheadroom at landing.

CC

PITCHED ROOFTo achieve U-value 0.18 W/m²KTimber roof structures to be designed by an Engineer inaccordance with NHBC Technical Requirement R5 StructuralDesign. Calculations to be based on BS EN 1995-1-1 and BS5268-3. Roofing tiles to match existing on 25 x 38mm tanalisedsw treated battens on sarking felt to BS747 or relevant BBACertificate. Supported on 47 x 100mm grade C24 rafters at max400mm centres max span 2.12m. Rafters supported on 100 x50mm sw wall plates. Insulation to be 50mm Celotex GA4000infilled between rafters and 70mm under rafters. Provide a cavityof 25mm by fixing battens between plasterboard and under rafterinsulation (recommended where insulation under rafters exceeds50mm).Maintain a 50mm air gap above insulation to ventilate roof.Provide opening at eaves level at least equal to continuous strip25mm wide and opening at ridge equal to continuous strip 5mmwide to promote ventilation. Fix 12.5mm foil backed plasterboard(joints staggered) and 5mm skim coat of finishing plaster to theunderside of all ceilings using galvanized plasterboard nails.Restraint strapping - Ceiling joists tied to rafters. 100mm x 50mmwall plate strapped down to walls. Ceiling joists and rafters to bestrapped to walls and gable walls, straps built into cavity, acrossat least 3 timbers with noggins. All straps to be 1000 x 30 x 5mmgalvanized straps or other approved to BSEN 845-1 at 2mcentres, in accordance with CP111 Part 2.

Insulate existing roof as per proposedpitched roof outlined below.

Proposed SVP. Vented through roof

ENSUITEEnsuite foul water drainagerouted through eaves andconnected to existing soil pipe

A

B B

A

CC

W-R6

W-R5

W-R1

W-R2

W-R3

W-R4

LOFT /ROOF PLAN5

BC

1:50, 1:100 @ A2

Roof & Loft Plan

Building Control










ROOF PLAN 1:100

LOFT PLAN 1:50

24.09.2012

myhome

myplans

myhome

myplans

myhome

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0 1 2 5

2,40

0

App

rox

2,00

0

26°

40°

FFL

FFL

Pitch to matchexistingVeranda.

Garage Wall removed

SOLID FLOOR INSULATION OVER SLABTo meet min U value required of 0.22 W/m²KSolid ground floor to consist of 150mm consolidated well-rammed hardcore. Blinded with 50mm sand blinding.Provide 100mm ST2 or Gen2 ground bearing slab concretemix to conform to BS 8500-2 over a 1200mm gaugepolythene DPM. DPM to be lapped in with DPC in walls.Floor to be insulated over slab and DPM with min 75mmthick Celotex GA4000.25mm insulation to continue around floor perimeters toavoid thermal bridging. A VCL should be laid over theinsulation boards and turned up 100mm at room perimetersbehind the skirting, all joints to be lapped 150mm andsealed. Finish with 65mm sand/cement finishing screed withlight mesh reinforcement.Where drain runs pass under new floor, provide A142 mesh1.0m wide and min 50mm concrete cover over length ofdrain.Where existing suspended timber floor air bricks arecovered by new extension, ensure cross-ventilation ismaintained by connecting to 100mm dia UPVC pipes with100mm concrete cover laid under the extension. Pipes toterminate at new 65mm x 215mm air bricks with cavity trayover.

SOLID FLOORSolid ground floor to consist of 150mm consolidated well-rammed hardcore. Blinded with 50mm sand blinding.Provide 100mm ST2 or Gen2 ground bearing slab concretemix to conform to BS 8500-2 o

Existing foundation

Existing floor joists to be exposed and checked foradequacy. Replaced with 170 x 50 C24 @ 400 Ctrsmax span 3.55m.Garage ceiling uvalue to achieve 0.22 w/m2k.150mm rockwool between joists, and a further25mm celotex TB4000 below joists, Ceilings to be12.5mm plasterboard over vapour barrier with skimplaster finish.

PITCHED ROOF INSULATION AT CEILING LEVELPitch 22-45° (imposed load max 0.75 kN/m² - dead loadmax 0.75 kN/m²)To achieve U value of 0.16 W/m²KTimber roof structures to be designed by an Engineer inaccordance with NHBC Technical Requirement R5Structural Design. Calculations to be based on BS EN1995-1-1 and BS 5268-3. Roofing tiles to match existing on25 x 38mm tanalised sw treated battens on sarking felt toBS747 supported on 47 x 100mm grade C24 rafters at max400mm centres max span 2.12m. Rafters supported on 100x 50mm sw wall plates. Insulation at ceiling level to be100mm Rockwool insulation laid between ceiling joists witha further 170mm layer over joists (cross direction).Construct ceiling using sw joists at 400mm centres, finishedinternally with 12.5mm plasterboard and min 3mm thistlemulti-finish plaster. Provide polythene vapour barrierbetween insulation and plasterboard. Provide opening ateaves level at least equal to continuous strip 25mm wide ontwo opposite sides to promote cross-ventilation. Monopitched roofs to have ridge/high level ventilation equivalentto a 5mm gap via proprietary tile vents spaced inaccordance with manufacturer’s details.Restraint strapping - 100mm x 50mm wall plate strappeddown to walls. Ceiling joists and rafters to be strapped towalls and gable walls, straps built into cavity, across at least3 timbers with noggins. All straps to be 1000 x 30 x 5mmgalvanized straps or other approved to BSEN 845-1 at 2mcentres, in accordance with CP111 Part 2.

FULL FILL CAVITY WALLTo achieve minimum U Value of 0.28W/m²K20mm two coat sand/cement render to comply toBS 5262 with waterproof additive on 100mmlightweight block, K value 0.16, (Aircrete, Celconsolar, Topblock Toplite Standard). Fully fill thecavity with 85mm Dritherm32 cavity insulation asmanufacturer's spec. Inner leaf to be 100mmlightweight, K value 0.16, (Aircrete, Celcon solar,Topblock toplite standard). Internal finish to be12.5 mm plasterboard on dabs. Walls to be builtwith 1:1:6 cement mortar.

UNVENTED PITCHED ROOFTo achieve U-value 0.18 W/m²KTimber roof structures to be designed by anEngineer in accordance with NHBC TechnicalRequirement R5 Structural Design. Calculationsto be based on BS EN 1995-1-1 and BS 5268-3.Roofing tiles to match existing on 25 x 38mmtanalised sw treated battens on breathablesarking felt to BS747 or relevant BBA Certificate.Supported on 47 x 100mm grade C24 rafters atmax 400mm centres max span 2.12m. Rafterssupported on 100 x 50mm treated sw wall plates.Allow min 20mm air space to allow for drape ofbreathable felt. Insulation to be 80mm CelotexFR4000 between rafters and 62.5mm CelotexPL4000 insulated plasterboard with VCL underrafters. Provide 5mm skim coat of finishingplaster to the underside of all ceilings.Restraint strapping - Ceiling joists tied to rafters100mm x 50mm wall plate strapped down towalls. Ceiling joists and rafters to be strapped towalls and gable walls, straps built into cavity,across at least 3 timbers with noggins. All strapsto be 1000 x 30 x 5mm galvanized straps or otherapproved to BSEN 845-1 at 2m centres, inaccordance with CP111 Part 2.

Beam to engineers designFD30s Self closing fire door

Beam to engineers design

WARM FLAT ROOFTo achieve U value 0.18 W/m²KFlat roof to be single ply membrane roofing providing aa fire rating forsurface spread of flame with a current BBA or WIMLAS Certificate and laidto specialist specification. Single ply membrane to be fixed to 22mmexterior quality plywood over 125mm Celotex TA4000.Insulation bonded to 22mm external quality plywood decking or similarapproved on sw firings to minimum 1 in 80 fall on sw treated 47 x 145mmflat roof C24 timber joists at 400mm ctrs to give a max span of 3.22m or asStructural Engineer's details and calculations. Underside of joists to have12.5mm foil backed plasterboard and skim. Provide cavity tray to existinghouse where new roof abuts existing house.Provide restraint to flat roof by fixing of 30 x 5 x 1000mm ms galvanisedlateral restraint straps at maximum 2000mm centres fixed to 100 x 50mmwall plates and anchored to wall.

Allow for roof structure as designed by engineer


Use Marley AshmoreInterlocking double plain tileon areas of low pitch.Suitable for 22.5 ' pitch

A

B B

A

CC

6BC

1:50 @ A2

SECTION A-A

Building Control

SECTION A- A

24.09.2012











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2,45

0

+-0.00m

+2.615m

-0.50m

+5.335m

+2.45m

150 x 50 C24 joists at approx. 300mmCtrs. TBC by engineer

Existing loadbearingwall removed.

Offset beam to engineers design

100 x 50 @ 400 CtrsLoad bearing studwall, TBC by engineer

GROUND LEVEL

Proposed joist depth to match existing.Assumed 170 x 50 @ 400 Ctrs.Engineer to confirm depth and spacingfor proposed.

PITCHED ROOFTo achieve U-value 0.18 W/m²KTimber roof structures to be designed by an Engineer in accordance with NHBCTechnical Requirement R5 Structural Design. Calculations to be based on BSEN 1995-1-1 and BS 5268-3. Roofing tiles to match existing on 25 x 38mmtanalised sw treated battens on sarking felt to BS747 or relevant BBACertificate. Supported on 47 x 100mm grade C24 rafters at max 400mm centresmax span 2.12m. Rafters supported on 100 x 50mm sw wall plates. Insulationto be 50mm Celotex GA4000 infilled between rafters and 70mm under rafters.Provide a cavity of 25mm by fixing battens between plasterboard and underrafter insulation (recommended where insulation under rafters exceeds 50mm).Maintain a 50mm air gap above insulation to ventilate roof. Provide opening ateaves level at least equal to continuous strip 25mm wide and opening at ridgeequal to continuous strip 5mm wide to promote ventilation. Fix 12.5mm foilbacked plasterboard (joints staggered) and 5mm skim coat of finishing plasterto the underside of all ceilings using galvanized plasterboard nails.Restraint strapping - Ceiling joists tied to rafters. 100mm x 50mm wall platestrapped down to walls. Ceiling joists and rafters to be strapped to walls andgable walls, straps built into cavity, across at least 3 timbers with noggins. Allstraps to be 1000 x 30 x 5mm galvanized straps or other approved to BSEN845-1 at 2m centres, in accordance with CP111 Part 2.

100 x 50 Loadbearing strutbelow purlin

Existing Joists

100 x 50 C24 Collar Tie

Purlin to engineers spec.

RENDERED CAVITY WALLCavity of existing ground floor extension assumed 65mm TBC onsite.Specification based on 65mm cavity.To achieve minimum U Value of 0.28W/m²K20mm two coat sand/cement render to comply to BS 5262 withwaterproof additive on 100mm lightweight block, K value 0.16,(Aircrete, Celcon Solar, Topblock Toplite Standard). Fully fill thecavity with 65mm Dritherm insulation batts in accordance withmanufacturer's spec. Inner leaf of 100mm Thermalite blockworkwith internal lining of Celotex PL4015 insulated plasterboard dotand dab to wall. Walls to be built with 1:1:6 cement mortar. Finishwalls with 3mm skim plaster.If cavity is less than shown, contact Celotex to establish correctinsulation required. T: 01473 820 850

Beam to engineers design.

WARM FLAT ROOFTo achieve U value 0.18 W/m²KFlat roof to be single ply membrane roofing providing aa fire rating forsurface spread of flame with a current BBA or WIMLAS Certificateand laid to specialist specification. Single ply membrane to be fixed to22mm exterior quality plywood over 125mm Celotex TA4000.Insulation bonded to 22mm external quality plywood decking orsimilar approved on sw firings to minimum 1 in 80 fall on sw treated47 x 145mm flat roof C24 timber joists at 400mm ctrs to give a maxspan of 3.22m or as Structural Engineer's details and calculations.Underside of joists to have 12.5mm foil backed plasterboard andskim. Provide cavity tray to existing house where new roof abutsexisting house.Provide restraint to flat roof by fixing of 30 x 5 x 1000mm msgalvanised lateral restraint straps at maximum 2000mm centres fixedto 100 x 50mm wall plates and anchored to wall.

Direction of fall

TRENCH FOUNDATIONProvide 750mm x 600mm trench fill foundations, concretemix to conform to BS EN 206-1 and BS 8500-2. Allfoundations to be a minimum of 1000mm below groundlevel, exact depth to be agreed on site with Building ControlOfficer to suit site conditions. All constructed in accordancewith 2004 Building Regulations A1/2 and BS 8004:1986Code of Practice for Foundations. Ensure foundations areconstructed below invert level of any adjacent drains. Baseof foundations supporting internal walls to be min 600mmbelow ground level. Sulphate resistant cement to be used ifrequired. Please note that should any adverse soilconditions or difference in soil type be found or any majortree roots in excavations, the Building Control Officer is tobe contacted and the advice of a structural engineer shouldbe sought.

UNVENTED PITCHED ROOFTo achieve U-value 0.18 W/m²KRoofing tiles to match existing on 25 x 38mm tanalised sw treatedbattens on breathable sarking felt to BS747 or relevant BBACertificate. Supported on 47 x 100mm grade C24 rafters at max400mm centres max span 2.12m. Rafters supported on 100 x 50mmtreated sw wall plates. Allow min 20mm air space to allow for drapeof breathable felt. Insulation to be 80mm Celotex FR4000 betweenrafters and 62.5mm Celotex PL4000 insulated plasterboard withVCL under rafters. Provide 5mm skim coat of finishing plaster to theunderside of all ceilings.


EXISTING STRUCTUREExisting structure including foundations, beams,walls and lintels carrying new and altered loadsare to be exposed and checked for adequacyprior to commencement of work and as requiredby the Building Control Officer.


0 1 2 5

A

B B

A

CC

7BC

Building Control

SECTION B-B

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m

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INTERMEDIATE FLOORS Intermediate floor to be 25mm t&g flooring gradechipboard or floorboards laid on C24 joists at400mm ctrs (see engineer's calculation for sizesand details). Lay 100mm Rockwool mineral fibrequilt insulation min 10kg/m³ or equivalentbetween floor joists. Ceiling to be 12.5 FireLineplasterboard with skim plaster set and finish.Joist spans over 2.5m to be strutted at mid spanusing 38 x 38mm herringbone strutting or 38mmsolid strutting (at least 2/3 of joist depth). In areassuch as kitchens, utility rooms and bathrooms,flooring to be moisture resistant grade inaccordance with BS7331:1990. Identificationmarking must be laid upper most to allow easyidentification. Provide lateral restraint where joistsrun parallel to walls, floors are to be strapped towalls with 1000mm x 30mm x 5mm galvanisedmild steel straps or other approved in compliancewith BS EN 845-1 at max 2.0m centres, straps tobe taken across minimum 3 no. joists. Straps tobe built into walls. Provide 38mm wide x ¾ depthsolid noggins between joists at strap positions.

First floor wall stepped in500mm as per originalplanning documents.

EXISTING STRUCTUREExisting structure including foundations, beams,walls and lintels carrying new and altered loadsare to be exposed and checked for adequacyprior to commencement of work and as requiredby the Building Control Officer.

STAIRS Dimensions to be checked and measured on siteprior to fabrication of stairs. Timber stairs tocomply with BS585 and with Part K of theBuilding Regulations. Max rise 220mm, min going220mm. Two risers plus one going should bebetween 550 and 700mm. Tapered treads tohave going in centre of tread at least the same asthe going on the straight. Min 50mm going oftapered treads measured at narrow end. Pitchnot to exceed 42 degrees. The width and lengthof every landing should be at least as great asthe smallest width of the flight. Doors whichswing across a landing at the bottom of a flightshould leave a clear space of at least 400mmacross the full width of the flight. Min 2.0mheadroom measured vertically above pitch line ofstairs and landings. Handrail on staircase to be900mm above the pitchline, handrail to be atleast one side if stairs are less than 1m wide andon both sides if they are wider. Ensure a clearwidth between handrails of minimum 600mm.Balustrading designed to be unclimbable andshould contain no space through which a 100mmsphere could pass. Allow for all structure asdesigned by a Structural Engineer.

Existing floor joists to be exposed and checkedfor adequacy. Replaced with 170 x 50 C24 @400 Ctrs max span 3.55m.Garage ceiling uvalue to achieve 0.22 w/m2k.150mm rockwool between joists, and a further25mm celotex TB4000 below joists, Ceilings tobe 12.5mm fireline plasterboard to achieve30mins fire resistance over vapour barrier withskim plaster finish.

Beam as designed by engineer

TIMBER FRAME WALLTo achieve minimum U Value of 0.28W/m²KTreated timber frame studs constructed using 100mm x 50mm head & sole platesand vertical studs (with noggins) at 400mm ctrs or to s/engineer's details &calculations. Insulation between and over studs; 100mm Kingspan ThermawallTW55 between plus VCL and 22mm Gyproc Thermaline plasterboard over. Finishwith 3mm skim coat of finishing plaster. All junctions to have water tightconstruction, seal all perimeter joints with tape internally and with silicon sealantexternally.

SECTION C-C8

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Building Control

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PARTY WALL ACTThe owner, should they need to do so under the requirements of the PartyWall Act 1996, has a duty to serve a Party Structure Notice on anyadjoining owner if building work on, to or near an existing Party Wallinvolves any of the following:• Support of beam• Insertion of DPC through wall• Raising a wall or cutting off projections• Demolition and rebuilding• Underpinning• Insertion of lead flashings• Excavations within 3 meters of an existing structure where the newfoundations will go deeper than adjoining foundations, or within 6 meters ofan existing structure where the new foundations are within a 45 degreeline of the adjoining foundations.A Party Wall Agreement is to be in place prior to start of works on site.

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.

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.

BEAMSSupply and install new structural elements such as new beams, roofstructure, floor structure, bearings, and padstones in accordance with theStructural Engineer's calculations and details. New steel beams to beencased in 12.5mm Gyproc FireLine board with staggered joints, GyprocFireCase or painted in Nullifire S or similar intumescent paint to provide1/2 hour fire resistance as agreed with Building Control. All fire protectionto be installed as detailed by specialist manufacturer.

LINTELS- For uniformly distributed loads and standard 2 storey domestic loadingsonlyLintel widths are to be equal to wall thickness. All lintels over 750mm sizedinternal door openings to be 65mm deep pre-stressed concrete planklintels. 150mm deep lintels are to be used for 900mm sized internal dooropenings. Lintels to have a minimum bearing of 150mm on each end. Anyexisting lintels carrying additional loads are to be exposed for inspection atcommencement of work on site. All pre-stressed concrete lintels to bedesigned and manufactured in accordance with BS 8110, with a concretestrength of 50 or 40 N/mm² and incorporating steel strands to BS 5896 tosupport loadings assessed to BS 5977 Part 1.For other structural openings provide proprietary insulated steel lintelssuitable for spans and loadings in compliance with Approved Document Aand lintel manufactures standard tables. Stop ends, DPC trays and weepholes to be provided above all externally located lintels.

STRAPPING FOR PITCHED ROOFGable walls should be strapped to roofs at 2m centres. All external wallsrunning parallel to roof rafters to be restrained at roof level using 1000mmx 30mm x 5mm galvanised mild steel horizontal straps or other approvedto BSEN 845-1 built into walls at max 2000mm centres and to be takenacross minimum 3 rafters and screw fixed. Provide solid noggins betweenrafters at strap positions. All wall plates to be 100 x 50mm fixed to innerskin of cavity wall using 30mm x 5mm x 1000mm galvanized metal strapsor other approved to BSEN 845-1 at maximum 2m centres.

STRAPPING OF FLOORSProvide lateral restraint where joists run parallel to walls, floors are to bestrapped to walls with 1000mm x 30mm x 5mm galvanised mild steelstraps or other approved in compliance with BS EN 845-1 at max 2.0mcentres, straps to be taken across minimum of 3 joists. Straps to be builtinto walls. Provide 38mm wide x ¾ depth solid noggins between joists atstrap positions.

FLAT ROOF RESTRAINT100m x 50mm C16 grade timber wall plates to be strapped to walls with1000mm x 30mm x 5mm galvanised mild steel straps at maximum 2.0mcentres fixed to internal wall faces.

TRENCH FOUNDATIONProvide 750mm x 600mm trench fill foundations, concrete mix to conformto BS EN 206-1 and BS 8500-2. All foundations to be a minimum of1000mm below ground level, exact depth to be agreed on site withBuilding Control Officer to suit site conditions. All constructed inaccordance with 2004 Building Regulations A1/2 and BS 8004:1986 Codeof Practice for Foundations. Ensure foundations are constructed belowinvert level of any adjacent drains. Base of foundations supporting internalwalls to be min 600mm below ground level. Sulphate resistant cement tobe used if required. Please note that should any adverse soil conditions ordifference in soil type be found or any major tree roots in excavations, theBuilding Control Officer is to be contacted and the advice of a structuralengineer should be sought.

SOLID FLOOR INSULATION OVER SLABTo meet min U value required of 0.22 W/m²KSolid ground floor to consist of 150mm consolidated well-rammedhardcore. Blinded with 50mm sand blinding. Provide 100mm ST2 or Gen2ground bearing slab concrete mix to conform to BS 8500-2 over a 1200mmgauge polythene DPM. DPM to be lapped in with DPC in walls. Floor to beinsulated over slab and DPM with min 75mm 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 withlight mesh reinforcement.Where drain runs pass under new floor, provide A142 mesh 1.0m wide andmin 50mm concrete cover over length of drain.Where existing suspended timber floor air bricks are covered by newextension, ensure cross-ventilation is maintained by connecting to 100mmdia UPVC pipes with 100mm concrete cover laid under the extension.Pipes to terminate at new 65mm x 215mm air bricks with cavity tray over.

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

CAVITY WALLS - GROUND FLOOR & SIDE EXTENSIONFULL FILL CAVITY WALLTo achieve minimum U Value of 0.28W/m²K20mm two coat sand/cement render to comply to BS 5262 with waterproofadditive on 100mm lightweight block, K value 0.16, (Aircrete, Celcon solar,Topblock Toplite Standard). Fully fill the cavity with 85mm Dritherm32cavity insulation as manufacturer's spec. Inner leaf to be 100mmlightweight, K value 0.16, (Aircrete, Celcon solar, Topblock toplitestandard). Internal finish to be 12.5 mm plasterboard on dabs. Walls to bebuilt with 1:1:6 cement mortar.

CAVITY WALLS - FIRST FLOOR REAR EXTENSIONRENDERED CAVITY WALLCavity of existing ground floor extension assumed 65mm TBC on site.Specification based on 65mm cavity.To achieve minimum U Value of 0.28W/m²K20mm two coat sand/cement render to comply to BS 5262 with waterproofadditive on 100mm lightweight block, K value 0.16, (Aircrete, Celcon Solar,Topblock Toplite Standard). Fully fill the cavity with 65mm Dritherminsulation batts in accordance with manufacturer's spec. Inner leaf of100mm Thermalite blockwork with internal lining of Celotex PL4015insulated plasterboard dot and dab to wall. Walls to be built with 1:1:6cement mortar. Finish walls with 3mm skim plaster.If cavity is less than shown, contact Celotex to establish correct insulationrequired. T: 01473 820 850

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.

WALL TIESAll walls constructed using stainless steel vertical twist type retaining wallties built in at 750mm ctrs horizontally, 450mm vertically and 225mm ctrsat reveals and corners in staggered rows. Wall ties to be suitable for cavitywidth and in accordance with BS 5268-6.1: 1996 and BS EN 845-1: 2003

CAVITIESProvide cavity trays over openings. All cavities to be closed at eaves andaround openings using Thermabate or similar non combustible insulatedcavity closers. Provide vertical DPCs around openings and abutments. Allcavity trays must have 150mm upstands and suitable cavity weep holes(min 2) at max 900mm centres.

EXISTING TO NEW WALLCavities in new wall to be made continuous with existing where possible toensure continuous weather break. If a continuous cavity cannot beachieved, where new walls abuts the existing walls provide a movementjoint with vertical DPC. All tied into existing construction with suitableproprietary stainless steel profiles.

ROOF - 2 STOREY SIDE EXTENSIONPITCHED ROOF INSULATION AT CEILING LEVELPitch 22-45° (imposed load max 0.75 kN/m² - dead load max 0.75 kN/m²)To achieve U value of 0.16 W/m²KTimber roof structures to be designed by an Engineer in accordance withNHBC Technical Requirement R5 Structural Design. Calculations to bebased on BS EN 1995-1-1 and BS 5268-3. Roofing tiles to match existingon 25 x 38mm tanalised sw treated battens on sarking felt to BS747supported on 47 x 100mm grade C24 rafters at max 400mm centres maxspan 2.12m. Rafters supported on 100 x 50mm sw wall plates. Insulationat ceiling level to be 100mm Rockwool insulation laid between ceiling joistswith a further 170mm layer over joists (cross direction).Construct ceiling using sw joists at 400mm centres, finished internally with12.5mm plasterboard and min 3mm thistle multi-finish plaster. Providepolythene vapour barrier between insulation and plasterboard. Provideopening at eaves level at least equal to continuous strip 25mm wide ontwo opposite sides to promote cross-ventilation. Mono pitched roofs tohave ridge/high level ventilation equivalent to a 5mm gap via proprietarytile vents spaced in accordance with manufacturer’s details.Restraint strapping - 100mm x 50mm wall plate strapped down to walls.Ceiling joists and rafters to be strapped to walls and gable walls, strapsbuilt into cavity, across at least 3 timbers with noggins. All straps to be1000 x 30 x 5mm galvanized straps or other approved to BSEN 845-1 at2m centres, in accordance with CP111 Part 2.

ROOF -SINGLE STOREY EXTENSIONUNVENTED PITCHED ROOFPitch 22-45° (imposed load max 0.75 kN/m² - dead load max 0.75 kN/m²)To achieve U-value 0.18 W/m²KTimber roof structures to be designed by an Engineer in accordance withNHBC Technical Requirement R5 Structural Design. Calculations to bebased on BS EN 1995-1-1 and BS 5268-3. Roofing tiles to match existingon 25 x 38mm tanalised sw treated battens on breathable sarking felt toBS747 or relevant BBA Certificate. Supported on 47 x 100mm grade C24rafters at max 400mm centres max span 2.12m. Rafters supported on 100x 50mm treated sw wall plates. Allow min 20mm air space to allow fordrape of breathable felt. Insulation to be 80mm Celotex FR4000 betweenrafters and 62.5mm Celotex PL4000 insulated plasterboard with VCLunder rafters. Provide 5mm skim coat of finishing plaster to the undersideof all ceilings.Restraint strapping - Ceiling joists tied to rafters (if raised collar roofconsult structural engineer). 100mm x 50mm wall plate strapped down towalls. Ceiling joists and rafters to be strapped to walls and gable walls,straps built into cavity, across at least 3 timbers with noggins. All straps tobe 1000 x 30 x 5mm galvanized straps or other approved to BSEN 845-1at 2m centres, in accordance with CP111 Part 2.

ROOF -SINGLE STOREY EXTENSIONWARM FLAT ROOF(imposed load max 1.0 kN/m² - dead load max 0.75 kN/m²)To achieve U value 0.18 W/m²KFlat roof to be single ply membrane roofing providing aa fire rating forsurface spread of flame with a current BBA or WIMLAS Certificate and laidto specialist specification. Single ply membrane to be fixed to 22mmexterior quality plywood over 125mm Celotex TA4000.Insulation bonded to 22mm external quality plywood decking or similarapproved on sw firings to minimum 1 in 80 fall on sw treated 47 x 145mmflat roof C24 timber joists at 400mm ctrs to give a max span of 3.22m or asStructural Engineer's details and calculations. Underside of joists to have12.5mm foil backed plasterboard and skim. Provide cavity tray to existinghouse where new roof abuts existing house.Provide restraint to flat roof by fixing of 30 x 5 x 1000mm ms galvanisedlateral restraint straps at maximum 2000mm centres fixed to 100 x 50mmwall plates and anchored to wall.

ROOF- UPGRADE OF EXISTING PITCHED ROOF(imposed load max 0.75 kN/m² - dead load max 0.75 kN/m²)Vented roof – pitch 22-45°To achieve U-value 0.18 W/m²KExisting roof structure to be assessed by a structural engineer and anyalterations to be carried out in strict accordance with structural engineer'sdetails and calculations which must be approved by building control beforeworks commence on site. The existing roof condition must be checked andbe free from defects as required by the Building Control Officer anydefective coverings or felt to be replaced in accordance withmanufacturer’s details.Roof construction - 47 x 100mm Grade C24 rafters at max 400mm centresmax span 2.12m. Insulation to be 50mm Celotex GA4000 infilled betweenrafters and 70mm under rafters.Provide a cavity of 25mm by fixing battens between plasterboard andunder rafter insulation (recommended where insulation under raftersexceeds 50mm).Maintain a 50mm air gap above insulation to ventilate roof. Provideopening at eaves level at least equal to continuous strip 25mm wide andopening at ridge equal to continuous strip 5mm wide to promote ventilationor provide equivalent high and low level tile vents in accordance withmanufactures details. Fix 12.5mm foil backed plasterboard (jointsstaggered) and 5mm skim coat of finishing plaster to the underside of allceilings using galvanized plasterboard nails.

PROPOSED PITCHED ROOF- MAIN ROOF EXTENSION(imposed load max 0.75 kN/m² - dead load max 0.75 kN/m²)Vented roof – pitch 22-45°To achieve U-value 0.18 W/m²KTimber roof structures to be designed by an Engineer in accordance withNHBC Technical Requirement R5 Structural Design. Calculations to bebased on BS EN 1995-1-1 and BS 5268-3. Roofing tiles to match existingon 25 x 38mm tanalised sw treated battens on sarking felt to BS747 orrelevant BBA Certificate. Supported on 47 x 100mm grade C24 rafters atmax 400mm centres max span 2.12m. Rafters supported on 100 x 50mmsw wall plates. Insulation to be 50mm Celotex GA4000 infilled betweenrafters and 70mm under rafters. Provide a cavity of 25mm by fixing battensbetween plasterboard and under rafter insulation (recommended whereinsulation under rafters exceeds 50mm).Maintain a 50mm air gap above insulation to ventilate roof. Provideopening at eaves level at least equal to continuous strip 25mm wide andopening at ridge equal to continuous strip 5mm wide to promoteventilation. Fix 12.5mm foil backed plasterboard (joints staggered) and5mm skim coat of finishing plaster to the underside of all ceilings usinggalvanized plasterboard nails.Restraint strapping - Ceiling joists tied to rafters (if raised collar roofconsult structural engineer). 100mm x 50mm wall plate strapped down towalls. Ceiling joists and rafters to be strapped to walls and gable walls,straps built into cavity, across at least 3 timbers with noggins. All straps tobe 1000 x 30 x 5mm galvanized straps or other approved to BSEN 845-1at 2m centres, in accordance with CP111 Part 2.

LEAD WORK AND FLASHINGSAll lead flashings, any valleys or soakers to be Code 5 lead and laidaccording to Lead Development Association. Flashings to be provided toall jambs and below window openings with welded upstands. Joints to belapped min 150mm and lead to be dressed 200mm under tiles, etc. Allwork to be undertaken in accordance with the Lead DevelopmentAssociation recommendations.

LEAD VALLEYSLead-lined valleys to be formed using Code 5 lead sheet. Valley lead andtwo tiling fillets to be supported on min 19mm thick and 225mm widemarine ply valley boards on either side of the rafters. Lead to be laid inlengths not exceeding 1.5m with min 150mm lap joints and be dressed200mm under the tiles.Roofing tiles to be bedded in mortar placed on a tile slip to prevent directcontact. Valley to have a minimum 100mm wide channel (125mmminimum for pitches below 30°).All work to be in accordance with the roof cladding manufacturers and theLead Development Association recommendations.

INTERNAL STUD PARTITIONS100mm x 50mm softwood treated timbers studs at 400mm ctrs with 50 x100mm head and sole plates and solid intermediate horizontal noggins at1/3 height or 450mm. Provide min 10kg/m³ density acoustic soundproofquilt tightly packed (eg. 100mm Rockwool or Isowool mineral fibre soundinsulation) in all voids the full depth of the stud. Partitions built off doubledup joists where partitions run parallel or provide noggins where at rightangles, or built off DPC on thickened concrete slab if solid ground floor.Walls faced throughout with 12.5mm plaster board with skim plaster finish.Taped and jointed complete with beads and stops.

INTERNAL MASONRY PARTITIONSConstruct non load bearing internal masonry partitions using denseconcrete blocks built off thickened floor slab and tied at 225mm centreswith proprietary steel profiles or block bonded to all internal and externalwalls. Walls faced throughout with 12.5mm plasterboard on dabs with skimplaster finish or 13mm lightweight plaster.

DOOR BETWEEN HOUSE AND GARAGEDoor between garage and house to be FD30 self closing with a 100mmstep down into garage, fitted with 3 steel hinges, intumescent strips andsmoke seals. Construction between house and garage to be 30 minutesfire resisting.

INTERMEDIATE FLOORSIntermediate floor to be 25mm t&g flooring grade chipboard or floorboardslaid on C24 joists at 400mm ctrs (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 FireLine plasterboardwith skim plaster set and finish. Joist spans over 2.5m to be strutted at midspan using 38 x 38mm herringbone strutting or 38mm solid strutting (atleast 2/3 of joist depth). In areas such as kitchens, utility rooms andbathrooms, flooring to be moisture resistant grade in accordance withBS7331:1990. Identification marking must be laid upper most to allow easyidentification. Provide lateral restraint where joists run parallel to walls,floors are to be strapped to walls with 1000mm x 30mm x 5mm galvanisedmild steel straps or other approved in compliance with BS EN 845-1 atmax 2.0m centres, straps to be taken across minimum 3 no. joists. Strapsto be built into walls. Provide 38mm wide x ¾ depth solid noggins betweenjoists at strap positions.

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 onegoing should be between 550 and 700mm. Tapered treads to have goingin centre of tread at least the same as the going on the straight. Min 50mmgoing of tapered treads measured at narrow end. Pitch not to exceed 42degrees. The width and length of every landing should be at least as greatas the smallest width of the flight. Doors which swing across a landing atthe bottom of a flight should leave a clear space of at least 400mm acrossthe full width of the flight. Min 2.0m headroom measured vertically abovepitch line of stairs and landings. Handrail on staircase to be 900mm abovethe pitchline, handrail to be at least one side if stairs are less than 1m wideand on both sides if they are wider. Ensure a clear width betweenhandrails of minimum 600mm. Balustrading designed to be unclimbableand should contain no space through which a 100mm sphere could pass.Allow for all structure as designed by a Structural Engineer.

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 LIGHTINGInstall low energy light fittings that only take lamps having a luminousefficiency greater than 45 lumens per circuit watt and a total output greaterthan 400 lamp lumens. Not less than three energy efficient light fittings perfour of all the light fittings in the main dwelling spaces to comply with Part Lof the current Building Regulations and the Domestic Building ServicesCompliance Guide.

HEATINGExtend all heating and hot water services from existing and provide newTVRs to radiators. Heating system to be designed, installed, tested andfully certified by a GAS SAFE registered specialist. All work to be inaccordance with the Local Water Authorities bye laws, the Gas Safety(Installation and Use) Regulations 1998 and IEE Regulations.

SMOKE DETECTIONMains operated linked smoke alarm detection system to BS 5446 - 1:2000and BS5839-6:2004 to at least a Grade D category LD3 standard and tobe mains powered with battery back up. Smoke alarms should be sited sothat there is a smoke alarm in the circulation space on all levels/ storeysand within 7.5m of the door to every habitable room. If ceiling mountedthey should be 300mm from the walls and light fittings. Where the kitchenarea is not separated from the stairway or circulation space by a door,there should be an interlinked heat detector in the kitchen.

MEANS OF ESCAPE - Fire doors Form a protected escape stairway by providing half hour fire resistance toall partitions as well as floors and ceilings above and below rooms.Stairway to be protected at all levels - from the loft room/rooms thenleading directly to an external door at ground level (no inner roomsallowed). All doors on to the stairway must be FD20 rated fire doors to BS476-22:1987 (fitted with intumescent strips rebated around sides & top ofdoor or frame if required by BCO). Where applicable, any glazing in firedoors to be half hour fire resisting and glazing in the walls forming theescape route enclosure to have 30 minutes fire resistance and be at least1.1m above the floor level or stair pitch line.

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, minimum0.33m sq. The bottom of the openable area should be not more than1100mm above the floor. The window should enable the person to reach aplace free from danger from fire.

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 glass toBS 6206 and Part N of the current Building Regulations, i.e. within1500mm above floor level in doors and side panels within 300mm of dooropening and within 800mm above floor level in windows.

NEW AND REPLACEMENT WINDOWSNew and replacement windows to be double glazed with 16mm argon gapand soft coat low-E glass. Window Energy Rating to be Band C or betterand to achieve U-value of 1.6 W/m²K. The door and window openingsshould be limited to 25% of the extension floor area plus the area of anyexisting openings covered by the extension.

NEW AND REPLACEMENT DOORSNew and replacement doors to achieve a U-Value of 1.80W/m²K. Glazedareas to be double glazed with 16mm argon gap and soft low-E glass.Glass to be toughened or laminated safety glass to BS 6206 and Part N ofthe current Building Regulations.

BACKGROUND AND PURGE VENTILATIONBackground ventilation - Controllable background ventilation via tricklevents to BS EN 13141-3 within the window frame to be provided to newhabitable rooms at a rate of min 5000mm²; and to kitchens, bathrooms,WCs and utility rooms at a rate of 2500mm²Purge ventilation - New Windows/rooflights to have openable area inexcess of 1/20th of their floor area, if the window opens more than 30° or1/10th of their floor area if the window opens less than 30°Internal doors should be provided with a 10mm gap below the door to aidair circulation.Ventilation provision in accordance with the Domestic VentilationCompliance Guide.

EXTRACT FOR SHOWER ROOMProvide mechanical extract ventilation to shower room ducted to externalair capable of extracting at a rate of not less than 15 litres per second.Vent to be connected to light switch and to have 15 minute over run if nowindow in the room. Internal doors should be provided with a 10mm gapbelow the door to aid air circulation. Ventilation provision in accordancewith the Domestic Ventilation Compliance Guide. Intermittent extract fansto BS EN 13141-4. All fixed mechanical ventilation systems, where theycan be tested and adjusted, shall be commissioned and a commissioningnotice 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.

RAINWATER DRAINAGENew rainwater goods to be new 110mm UPVC half round gutters takenand connected into 68mm dia UPVC downpipes. Rainwater taken to newsoakaway, situated a min distance of 5.0m away from any building, via110mm dia UPVC pipes surrounded in 150mm granular fill. Soakaway tobe min of 1 cubic metre capacity (or to depth to Local Authorities approval)with suitable granular fill and with geotextile surround to prevent migrationof fines. If necessary carry out a porosity test to determine design anddepth of soakaway.

UNDERGROUND FOUL DRAINAGEUnderground drainage to consist of 100mm diameter UPVC proprietarypipe work to give a 1:40 fall. Surround pipes in 100mm pea shingle.Provide 600mm suitable cover (900mm under drives). Shallow pipes to becovered with 100mm reinforced concrete slab over compressible material.Provide rodding access at all changes of direction and junctions. All belowground drainage to comply with BS7158 and BS801.

INSPECTION CHAMBERSUnderground quality proprietary UPVC 450mm diameter inspectionchambers to be provided at all changes of level, direction, connections andevery 45m in straight runs. Inspection chambers to have bolt down doublesealed covers in buildings and be adequate for vehicle loads in driveways.

ABOVE GROUND DRAINAGEAll new above ground drainage and plumbing to comply with BS.5572.1978 for sanitary pipework. All drainage to be in accordance withPart H of the Building Regulations. Wastes to have 75mm deep anti vacbottle traps and rodding eyes to be provided at changes of direction.

Size of wastes pipes and max length of branch connections (if max lengthis exceeded then anti vacuum traps to be used)Wash basin - 1.7m for 32mm pipe 4m for 40mm pipeBath/shower - 3m for 40mm pipe 4m for 50mm pipeW/c - 6m for 100mm pipe for single WCAll branch pipes to connect to 110mm soil and vent pipe terminating min900mm above any openings within 3m.Or to 110mm upvc soil pipe with accessible internal air admittance valvecomplying with BS EN 12380, placed at a height so that the outlet is abovethe trap of the highest fitting.Waste pipes not to connect on to SVP within 200mm of the WCconnection.Supply hot and cold water to all fittings as appropriate.

SOIL AND VENT PIPESvp to be extended up in 110mm dia UPVC and to terminate min 900mmabove any openings within 3m. Provide a long radius bend at foot of SVP.

AUTOMATIC AIR VALVEGround floor fittings from WC to be connected to new 110mm UPVC soilpipe with accessible internal air admittance valve complying with BS EN12380, placed at a height so that the outlet is above the trap of the highestfitting and connected to underground quality drainage encased with peagravel to a depth of 150mm.

PIPEWORK THROUGH WALLSWhere new pipework passes through external walls form rocker jointseither side wall face of max length 600mm with flexible joints with shortlength of pipe bedded in wall.Alternatively provide 75mm deep pre-cast concrete plank lintels over drainto form opening in wall to give 50mm space all round pipe: mask openingboth sides with rigid sheet material and compressible sealant to prevententry of fill or vermin.

GLASS BALUSTRADINGAll balcony balustrades to be min 1.1m in height. Balustrades to be intoughened glass in accordance with Part N of the Building Regulations anddesigned to resist the horizontal force given in BS 6399: Part 1:1996. Noopenings in any balustrading should allow the passage of a 100mm sphereand children should not readily be able to climb the guarding.

FIXED EXTERNAL LIGHTINGExternal light fittings to be fitted as calculated in the DER and incompliance with the Domestic Building Services ComplianceGuide.Light fitting to be either:a. lamp capacity not greater than 100 lamp-watts per light fittingand provided with automatic movement detecting devices (PIR)and automatic daylight sensors ensuring lights shut offautomatically when not required.Orb. lamp efficacy greater than 45 lumens per circuit-watt; fittedwith manual controls and automatic day light cut-off sensors sothat lights switch off when daylight is sufficient.

BUILDING REGULATIONS NOTES

9BC

Building Control

A224.09.2012

BUILDING CONTROL NOTES

LOW PITCH ROOF.Use Marley Ashmore Interlocking double plain tile onareas of low pitch. Suitable for 22.5 ' pitch

SVP & Extract ducts in GarageMechanical extraction, via shared ductingvented out through roof. Utility 30LS,Kitchen 60LS. Box in SVP and Extractionducts with 50 x 50 timber studs, full fillwith mineral wool and finished with12.5mm fireline plasterboard to achieve30mins fire resistance See notes for fullextraction details.

FLOOR BUILDUP.Suspended floor to be provided if conditions unsuitable forground bearing slab. TBC on siteGarage ceilingTo achieve uvalue 0.22 w/m2k.150mm rockwool between joists, and a further 25mmcelotex TB4000 below joists, Ceilings to be 12.5mmfireline plasterboard to achieve 30mins fire resistanceover vapour barrier with skim plaster finish.

WindowsAny first floor windows with opening within 800mm offloor level to be fixed shut, guarded or have restrictedopening of max 100mm.










Ground Floor 1:100 - My Home My Plansmix to conform to BS EN 206-1 and BS 8500-2. All foundations to...

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Transcript of Ground Floor 1:100 - My Home My Plansmix to conform to BS EN 206-1 and BS 8500-2. All foundations to...