electrical plans

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5

Location Plan (Existing)

Scale 1:1250 @A3

Site Plan (Proposed)

Scale 1:500 @A3

0 25 50 75 100

1:1250

Scale in Meters

0 10 20 40

1:500

Scale in Meters

30

Client.....

Project.....

Drawing Title.....

DWG No..... Rev.....

Drawn By..... Date.....

Drawing Scale.....

Do Not Scale off Drawings

Check all Dimensions on site before all works are commenced

All Goods, Materials & Workmanship to conform with current Building Regs

Rob Shepherd Designs

Email; [email protected] Tel; 07917 331264

87a Mile Oak Road, Portslade, Brighton, Sussex. Bn41 2PJ

Copyright of Rob Shepherd DesignsC

Amendments

Rev. Date Revision Detail / Comments

Notes

Mr J Blackwell

20 Windlesham Road, Shoreham

Location and Site plans

N/A A

RDS 09/08/2017

1:1250 / 1:500

N

N

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5

2

2

RWP

RWP

GULLY

SVP

I.C

assum

ed boundary

assum

ed boundary

assum

ed boundary

assum

ed boundary

Water

Cyld'r

Elec's (fuse - M

eter)

Gas (m

eter)

Boiler

sew

er

sew

er

Bedroom

Cu

pb

'd

Bedroom

Dining Room

Living Room

Hall

Kitchen

Shower Room

Toilet

Porch

No. 22

No. 18

GULLY

A

A

assum

ed boundary

assum

ed boundary

assum

ed boundary

assum

ed boundary

No. 22

No. 18

Client.....

Project.....

Drawing Title.....



Drawing Scale.....








Amendments


Notes

Mr J Blackwell


Exisitng Floor and roof Plans

2017/040-01 A

RDS 12.12.2017

Varies @ A1/A3

0 1

1:50

Scale in Meters

102 3 4 5 6 7 8 9

0 2.5 5 7.5 10

1:100

Scale in Meters

Existing Ground Floor Plan

Scale 1:50 @A1 / 1:100@A3


Scale 1:1250 @A1 / 1:2500@A3

Site Plan (Existing)

Scale 1:500 @A1 / 1:1000@A3

0 25 50 75 100

1:1250

Scale in Meters

0 50 100 150 200

1:2500

Scale in Meters

0 10 20 40

1:500

Scale in Meters

30

0 25 50 75

1:1000

Scale in Meters

N

Existing Roof Plan

Scale 1:50 @A1 / 1:100@A3

N

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2

2

5

2

2

0 1

1:50

Scale in Meters

102 3 4 5 6 7 8 9

0 2.5 5 7.5 10

1:100

Scale in Meters

Existing South Elevation

Scale 1:50 @A1 / 1:100@A3


Scale 1:1250 @A1 / 1:2500@A3

Site Plan (Existing)

Scale 1:500 @A1 / 1:1000@A3

0 25 50 75 100

1:1250

Scale in Meters

0 50 100 150 200

1:2500

Scale in Meters

0 10 20 40

1:500

Scale in Meters

30

0 25 50 75

1:1000

Scale in Meters

Existing Section

Scale 1:50 @A1 / 1:100@A3

Existing East Elevation

Scale 1:50 @A1 / 1:100@A3

Existing North Elevation

Scale 1:50 @A1 / 1:100@A3

Existing West Elevation

Scale 1:50 @A1 / 1:100@A3

Client.....

Project.....

Drawing Title.....



Drawing Scale.....








Amendments


Notes

Mr J Blackwell


Exisitng Elevations and Section

2017/040-02 A

RDS 12.12.2017

Varies @ A1/A3

8605

7573

5946

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2

2

RWP

RWP

GULLY

SVP

I.C

assum

ed boundary

assum

ed boundary

assum

ed boundary

assum

ed boundary

sew

er

sew

er

Bedroom

Cu

pb

'd

Kitchen

Shower

Porch

No. 22

No. 18

Dinning

Living Room

RWP

To Soakaway To Soakaway

Utility

Elec's (fuse - Meter)

Study

Room

A

A

B B

sew

er

Hall

Stairs Up

1

2

3

4

5

6

7 8 9

SD

FD

30

FD30

FD30

IW

T2

IW

T2

IWT5

IW

T4

IW

T5

IW

T5

EWT3

IWT5

EW

T3

assum

ed boundary

assum

ed boundary

assum

ed boundary

assum

ed boundary

sew

er

No. 22

No. 18

Bedroom

Bedroom

Bathroom

Landing

Eaves Storage Eaves Storage

Stairs

Down

SVP

Cupb'd

EWT1

EWT2

IWT1

IWT1

IW

T1

IW

T2

IW

T2

IWT2

IW

T3

IW

T3

EWT2

EW

T1

EW

T1

EW

T1

11

12

13

14

5

6

7 8

9

10

SD

FD30

FD

30

A

MK06 MK06MK06MK06

Fall

Fall

Fall

A

B B

Client.....

Project.....

Drawing Title.....



Drawing Scale.....








Amendments


Notes

Mr J Blackwell


Proposed Floor and roof Plans

2017/040-03 C

RDS 11.01.2018

Varies @ A1/A3

0 1

1:50

Scale in Meters

102 3 4 5 6 7 8 9

0 2.5 5 7.5 10

1:100

Scale in Meters

Proposed Ground Floor Plan

Scale 1:50 @A1 / 1:100@A3

Location Plan (Proposed)

Scale 1:1250 @A1 / 1:2500@A3


Scale 1:500 @A1 / 1:1000@A3

0 25 50 75 100

1:1250

Scale in Meters

0 50 100 150 200

1:2500

Scale in Meters

0 10 20 40

1:500

Scale in Meters

30

0 25 50 75

1:1000

Scale in Meters

N

Proposed First Floor Plan

Scale 1:50 @A1 / 1:100@A3

N

3667

4659

1490 3004

800

2050

2100

2850

2104

750

1684

800

5951

1531 6000 1531

815 2707175 15

2619

15

2552

EWT1

IWT3

R

T

2

RT

1

FT

1

FT

1

RT

2

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Scale in Meters

102 3 4 5 6 7 8 9

0 2.5 5 7.5 10

1:100

Scale in Meters

Proposed South Elevation

Scale 1:50 @A1 / 1:100@A3

Proposed Section

Scale 1:50 @A1 / 1:100@A3

Proposed East Elevation

Scale 1:50 @A1 / 1:100@A3

Proposed North Elevation

Scale 1:50 @A1 / 1:100@A3

Proposed West Elevation

Scale 1:50 @A1 / 1:100@A3

Client.....

Project.....

Drawing Title.....



Drawing Scale.....








Amendments


Notes

Mr J Blackwell


Proposed Elevations and Section

2017/040-04 A

RDS 12.12.2017

Varies @ A1/A3


Scale 1:1250 @A1 / 1:2500@A3


Scale 1:500 @A1 / 1:1000@A3

0 25 50 75 100

1:1250

Scale in Meters

0 50 100 150 200

1:2500

Scale in Meters

0 10 20 40

1:500

Scale in Meters

30

0 25 50 75

1:1000

Scale in Meters

1100

2200

2842

2300 29

90

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B4.

B1.

B2.

B3.

B5.

T1.

B6.

RL1.

RL2.

T2.

RL4.

Cu

pb

'd

Shower


Room

Stairs Up

1

2

3

4

5

6

7 8 9

SVP

R1.

R2.

L2.

7 8

9

L3.L1.

Fall

Fall

Fall

IN

SID

E

OU

TS

ID

E

External Wall Type EWT1

Gable End

u-value to achieve 0.27/m²K approx.

INSIDE:

2mm Skin plaster finish

12.5mm Plaster board

12mm Rigid board insulation (celotex or similar) taped

and sealed to form VC barrier

100mm x 50mm (C16) timber studs @ 400mm C/C

25mm Low E cavity

75mm Rigid board insulation (celotex or similar)

11mm (min) OSB sheathing

Cavity



breathable membrane

25mm x 38mm softwood batten

Plain hung tiles

OUTSIDE:


Dormer Wall


INSIDE:



12mm Rigid board insulation (celotex or similar) taped and

sealed to form VC barrier


25mm Low E cavity

75mm Rigid board insulation (celotex or similar)


breathable membrane

25mm x 38mm softwood batten

Plain hung tiles

OUTSIDE:

Internal Wall Type IWT2

New Partition Wall

Fire resistance to achieve 30mins

Sound reduction - 40RwDb

Face 1:




25mm cavity/void

50mm acoustic Partition roll (isover APR 1200 or similar)

25mm cavity/void



Face 2:

FA

CE

1

FA

CE

2


New Partition Wall


Face 1:




100mm cavity/void



Face 2:

FA

CE

1

FA

CE

2


New parameter (loft) / Partition Wall


Face 1:

75mm rigid insulation board (celotex or similar)

25mm Low E cavity


12mm rigid insulation board (celotex or similar),taped and

sealed to form VC barrier.



Face 2:

FA

CE

1

FA

CE

2

Roof Type RT2

Existing Pitched Roof Upgrade


OUTSIDE:

concrete roof tiles on tiling battens to match existing

breathable membrane

150mm x 50mm (C16) timber rafters as to structural

calculations, added to existing 100mm x 50mm rafters

50mm Low E cavity

100mm rigid insulation board (celotex or similar)

(between rafters)

40mm rigid insulation board (celotex or similar),taped

and sealed to form VC barrier



INSIDE:

IN

SID

E

OU

TS

ID

E

I

N

S

I

D

E

O

U

T

S

I

D

E

TOP

BOTTOM

Floor Type FT1

New Loft Floor



TOP:

22mm (min) T & G floor boards or 19mm plywood

170mm x 50mm (C16) timber floor joists as to structural

calculations

100mm (min.) mineral wool, density 60kg/m³ (min.)

existing ceiling joists (100mm x 50mm)

plaster board and plaster skim or Lath and plaster

BOTTOM:

Roof Type RT1

Dormer FLAT ROOF


OUTSIDE:

3 layer built up Felt

22mm exterior Grade plyboard

SW Firings to min 1 in 80 Fall

170mm x 50mm (C16) timber joists

120mm rigid insulation board (celotex) between joists

1200 Gauge Vapour Barrier

30mm rigid insulation board (celotex) under joists

12.5mm Plasterboard


BOTTOM:

INSIDE

Outside

Client.....

Project.....

Drawing Title.....



Drawing Scale.....








Amendments


Notes

Mr J Blackwell


Proposed Loft Joist / Beam Plans

2017/040-05 B

RDS 11.01.2018

Varies @ A1/A3

0 1

1:50

Scale in Meters

102 3 4 5 6 7 8 9

0 2.5 5 7.5 10

1:100

Scale in Meters

Proposed Loft Joist / Floor Beam Plan

Scale 1:50 @A1 / 1:100@A3


Scale 1:1250 @A1 / 1:2500@A3


Scale 1:500 @A1 / 1:1000@A3

0 25 50 75 100

1:1250

Scale in Meters

0 50 100 150 200

1:2500

Scale in Meters

0 10 20 40

1:500

Scale in Meters

30

0 25 50 75

1:1000

Scale in Meters

Proposed Loft Ridge Beam / Trimmer Plan

Scale 1:50 @A1 / 1:100@A3

Flo

or Jo

ist J1

150m

m x 50m

m (C

16)

@400m

m C

/C

Flat ro

of Jo

ist

170m

m x 50m

m (C

16)

@400m

m C

/C

Flo

or Jo

ist J3

150m

m x 50m

m (C

16)

@400m

m C

/C

Flo

or Jo

ist J5

150m

m x 50m

m (C

16)

@400m

m C

/C

Flo

or Jo

ist J4

150m

m x 50m

m (C

16)

@400m

m C

/C

Flo

or Jo

ist J2

125m

m x 50m

m (C

16)

@400m

m C

/C

Flat ro

of Jo

ist

170m

m x 50m

m (C

16)

@400m

m C

/C

Ref. Description Beam Size

R1

Beam/Joist Details

All beams/ joists etc, subject to calculations report.

Ridge Beam

Please refer to Calculation report for full specification and bearing plate details, etc.

R2 Ridge Beam

203 x 133 x 25 UB

B1 Floor Beam

B2 Floor Beam 203 x 102 x 23 UB

B3 Floor Beam

B4 Floor Beam 178 x 102 x 19 UB

B5 Floor Beam 2no. 50mm x 170mm (C16) + 10mm x 145mm Flitch Plate

B6 Floor Beam

RL1 Raised Lintel 127 x 76 x 13 UB

RL2 Raised Lintel

RL3 Raised Lintel

T1 Stair Trimmer 2no. 50mm x 150mm (C16)

T2 Stair Trimmer

L1 Window Lintel

L2 Window Lintel

Building Regulation Notes For Loft Conversion

Beams

Fit new Floor joists (see Joist Plan for details). Install beams in accordance with structural engineer's design. Beam ends on

mild steel bearing plates. Plates or padstones to be built onto brickwork and bedded in 10mm thick mortar. Reinstate brickwork

around beam ends and pack well with mortar. Floor beams to provide 30-minute fire resistance by coating with intumescent

paint or by encasing in 2no. layers of 12.5mm plasterboard with staggered joints, taped and filled. All new beams to stand

25mm (minimum) clear of existing ceiling. Supporting studwork under rafters to have sole plate bolted to top flange of steel

beam web via M12 bolts @ 600mm C/C. Allow for existing Beams/Lintels to be exposed and inspected BCO.

New Floor

Fit new floor joists (see Structural Engineers design details) @400mm c/c. Joists to be fixed directly into Beam webbing with

solid web blocking, or fixed to beam bearers or trimmers with galvanized joist hangers. Solid strutting to be provided between

joists spanning more that 2500mm. Double joists to be provided under non-load bearing internal walls. Multiple timbers to be

bolted together @600mm c/c with M12 grade 4.6 bolts, washers and toothed plate connections. 100mm mineral wool

(10kg/m³) between existing ceiling joists supported on chicken wire where existing ceiling is lath and plaster or 9.5mm

plasterboard. Mineral wool to be run up to but not into eaves. Where existing ceiling is 12.5mm plasterboard, chicken wire

omitted. Lay 22mm (25kg/m³ minimum) T@G flooring-grade chipboard throughout, including any eaves storage space over

existing ceiling joists. Floor to Bathroom to be laid with moisture-resistant chipboard as specified in BS 7331;1990 or BS EN

312 part 5:1997 to conform to Approved Document C. Finished Floor construction to Achieve a minimum of 30 minutes fire

resistance.

Walls - Dormer47 x 100mm vertical studs (C16) fixed to sole and head plates and 2no. 170mm x 47mm header beams. External sheathingto be 11mm OSB3 Cloaked with breather membrane. 38 x 25mm treated softwood tiling battens minimum length1200mm to be fixed through membrane and OSB to studwork at 114 gauge (maximum) with plain tile hanging (265 x165mm). Fix soakers and flashings as required to all roof and window junctions in code 4 lead sheet. Friction fit 1 no.layers of 75mm Celotex rigid insulation to all stud voids with Low-emissity cavity 25mm, with 12mm celotex TB4000 toinside of studs. Finish with 12.5mm plasterboard with skim coat. Dormer Cheeks within 1000mm of a boundary to have9mm supalux board over the external sheathing to achieve 30mins fire resistance from both sides. Cheeks built offexisting masonry to have GMS straps @900mm C/C.Dormer Walls to provide a U-value of 0.26 W/m²K

Walls - Internal Partitions

Internal partitions to be 47 x 100mm vertical studs @ 400mm c/c fixed to head and base plates with staggered noggings. Both

sides to be faced with 12.5mm Gyproc Soundbloc (minimum mass 10KG/M²) and plaster skim finish.

To achieve 30mins Fire Resistance

Bathroom partitions to be 47 x 100mm vertical studs @ 400mm c/c fixed to head and base plates with staggered noggings.

Stud voids to be filled with snug-fitting 50mm Isover ARP 1200. Both sides to be faced with 12.5mm Gyproc Soundbloc

(minimum mass 10KG/M²) and plaster skim finish - add additional layer of wedi board where surface id to be tiled.

To achieve 30mins Fire Resistance

Walls -Purlin & Perimeter

Purlin & perimeter walls to be 50 x 100mm vertical studs (C16) @400mm c/c or centers suitable to rafters with 50 x 100mm

head and base plates. Stud voids to be fitted with 1no. layer of 75mm Celotex rigid insulation with Low-emissity cavity 25mm

with 12mm Celotex insulation to inside face of studs. Insulation joints to be taped and perimerter sealed with mastic to provide

a vapour control layer. Finish with 12.5mm plasterboard with plaster skim finish.

Wall to provide a U-value of 0.28 W/m²K.

Walls - Stair Enclosure

50 x 100mm vertical studs @ 400mm c/c fixed to head and base plates with staggered noggings. Both sides faced with

12.5mm Plasterboard and plaster skim finish (to provide 30minutes Fire Resistance).

Walls - Gable End

Inner Leaf

50 x 100mm vertical studs (C16) fixed to sole and head plates and 1no. External sheathing to be 19mm OSB3. Friction fit 1 no.

layers of 75mm Celotex rigid insulation to all stud voids , with 12mm celotex TB4000 to inside of studs. Finish with 12.5mm

plasterboard with skim coat.

Outer leaf

47 x 100mm vertical studs (C16) fixed to sole and head plates and 2no. 170mm x 47mm header beams. External sheathingto be 11mm OSB3 Cloaked with breather membrane. 38 x 25mm treated softwood tiling battens minimum length1200mm to be fixed through membrane and OSB to studwork at 114 gauge (maximum) with plain tile hanging (265 x165mm). Fix soakers and flashings as required to all roof and window junctions in code 4 lead sheet. Friction fit 1 no.layers of 100mm Celotex rigid insulation to all stud void

Dormer Flat Roof

(imposed load max 1.0 kN/m² - dead load max 0.75 kN/m²)

To achieve U value of 0.18 W/m²K

Ventilated flat roof to Structural Engineer's details, construction comprising of 12.5mm spa solar reflective chippings to achieve

aa designated fire rating for surface spread of flame bedded in bitumen on three layer felt to BS 6229:2003 laid on 22mm

exterior grade plywood on firrings to give a 1:40 fall, fixed to 50 x 170mm grade C16 timber joists at 400 centres max span

3.22m. Cross ventilation to be provided on opposing sides by a proprietary eaves ventilation strip equivalent to 25mm

continuous with fly proof screen. Flat roof insulation is to be continuous with the wall insulation but stopped back to allow a

50mm air gap above the insulation for ventilation. Insulation to be 120mm Celotex GA4000 between joists and 42.5mm

Celotex PL4000 insulated plasterboard with a vapour barrier under joists. Finish with a 3mm plaster skim. Provide restraint to

flat roof by fixing using of 30 x 5 x 1000mm ms galvanised lateral restraint straps at maximum 2000mm centres fixed to 100 x

50mm wall plates and anchored to wall. Workmanship to comply to BS 8000:4.

Roof Window

Roof openings to be fully trimmed with 2no. 50 x 150mm C16 rafters. Trimmers also to be provided above and below opening.

Opening to be fitted with Velux Top pivot roof windows. window to be installed in accordance with manufacturers instructions.

Roof windows to provide a U-value of 1.4 W/M²K.

Juliet Balcony

Handrail set at 1100mm (minimum) above Finished floor line. No part of balustrade or Guard to allow passage of a 100mm

sphere, to conform to requirements of Approved Document K. Handrail/Guard to be fixed directly into timber stud.

Windows and Ventilation

All windows white u-pvc double glazed using 4 /16 /4 low-E glass (approved Document L)

All habitable rooms to have openable windows with rapid ventilation equivalent to 5% of floor area with minimum 1750mm

above floor level. Background ventilation of 8000mm² (minimum). Ensuite to be fitted with mechanical extractor to achieve 15

litres / second extraction connected to light switch. Bathrooms to have background ventilation of 4000mm².

Roof windows to provide a U-value of 1.6 W/M²K.

Existing and Proposed Roof Slope - insulation

Friction fit 100mm Celotex rigid insulation fitted between rafters, with 50mm air gap to cold side of insulation. 40mm Celotex

rigid insulation fixed to underside rafters, Insulation joints to be taped and perimeter sealed with mastic to provide a vapour

control layer (alternatively, Superfoil SF19 fixed to rafters, with 38mm x 25mm battens over). Finish with 12.5mm plasterboard

with skim coat.

Existing roof slope to achieve a U-value of 0.18 W/M²K.

Existing Roof - Ventilation

Existing roof structure to be provided with proprietary ventilators or vents to existing eaves to achieve equivalent continuous

ventilation of 25mm (eaves). Tile or ridge vents to give equivalent of 5mm continuous ventilation (ridge). Provide insect mesh

to all vents.

Roof construction to provide a U-value of 0.18 W/M²K.

Roof - General

Fix U-PVC soffit and fascia boards, disperse surface water to existing Rear roof pitch & existing gutter and downpipe system.

Staircase

Estimated floor-to-floor of 2842mm gives 14 equal risers of 203 mm (42° Max.pitch) Staircase soffit to be fitted with 2no.

layers of 12.5 plasterboard (overlapping joints) with plasterskim coat finish to provide 30-minutes fire resistance.Headroom

minimum 1800-2000mm depending on position to conform to Approved Document K.Handrail set at 900mm (minimum) above

pitch line. No part of balustrade or stair case to allow passage of a 100mm sphere, to conform to requirements of Approved

Document K.

Electrical

Provide energy-efficient light fittings to achieve a luminous efficiency of 45 lumens per circuit watt or greater.

Electrical insulation to be designed, installed, inspected and tested in accordance with the requirements of BS7671 (IEE

Wiring Regulations) and Approved Document P (electrical safety).

Drainage

Basin and shower waste pipes to be 40mm diameter. runs of 4mtr to be 50mm diameter all connected separately with water

seal traps to existing SVP or new 100mm common branch pipe (1:40 fall). Cleaning access to be provided at change of pipe

direction. Opposed directions to SVP to be offset at least 200mm. Vent pipe within 3mtr of any openable window to be

extended 900mm above top of opening and provide with cage or perforated cover to conform with guidance in Approved

Document H.

Fire

All new doors to provide resistance to FD 30 standards.

Existing Period doors (of habital rooms) off of proposed protected stairwell to be upgarded to acheive FD30 rating using

intumescent upgrade kit, to the agreement of B.C.O

Smoke detectors to be fitted to all habitable rooms on all floors of the dwelling (where existing doors on ground and

first floor to be retained (un-upgraded).

Smoke Detectors

New smoke detectors to be mains powered, inter-linked and hard wired. Smoke alarms to be fitted in accordance with BS

5839-6:2013; part 1 and installed on each floor in accordance with Approved Document B (system to be an LD3 system or

better).

& B-REG Notes / Details

Timber post

for Beam R2.

above.

Timber post

for Beam R2.

above.

Timber post

for Beam R1.

above.

Timber post

for Beam R1.

above.

L3 Window Lintel

RL4 Raised Lintel

203 x 133 x 25 UB

203 x 102 x 23 UB

203 x 102 x 23 UB

178 x 102 x 19 UB

2no. 50mm x 170mm (C16) + 10mm x 145mm Flitch Plate

2no. 50mm x 150mm (C16)

2no. 50mm x 150mm (C16)

2no. 50mm x 150mm (C16)

2no. 50mm x 150mm (C16)

2no. 50mm x 150mm (C16)

2no. 50mm x 150mm (C16)

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1

0

3

2

2

5

2

2

RT

2

RT

2

EWT3

FT

1

Roof Type RT2

WARM FLAT ROOF


OUTSIDE:

Single Ply membrane roofing (GRP)


125mm rigid insulation board (celotex)


1200 Gauge Vapour Barrier

SW Firings to min 1 in 80 Fall

150mm x 50 (C24) joists12.5mm Plasterboard


BOTTOM:

INSIDE

Outside

Floor Type FT2

Ground Bearing Porch Floor



TOP:

65mm Cement/Sand screed (under floor heating pipes

within)

100mm Plain in-situ Concrete Slab

75mm rigid insulation board (celotex)

1200 Gauge DPM

50mm Sand Blinding

150mm well compacted hardcore

BOTTOM:

Bottom

Top

IN

SID

E

OU

TS

ID

E


New External Wall


INSIDE:


100mm dense block (7.2N)

50mm insulation (Rockwall)

50mm cavity

100mm Concrete block (3.6N)

12.5mm Plasterboard (on dabs)

20mm exterior render.

OUTSIDE:


New Partition Wall


Sound reduction - 40RwDb

Face 1:




25mm cavity/void

50mm acoustic Partition roll (isover APR 1200 or similar)

25mm cavity/void



Face 2:

FA

CE

1


New External Wall

Face 1:



100mm Topblock Hemelite (7N)

85mm cavity void




Face 2:

Fa

ce

1

Fa

ce

2


New External Wall

Face 1:






Face 2:

Fa

ce

1

Fa

ce

2

Bedroom

Cu

pb

'd

Kitchen

Shower

Porch

Dinning

Living Room

Utility


Study

Room

Hall

Stairs Up

1

2

3

4

5

6

7 8 9

SD

FD30

FD30

FD

30

L6.

FD30

B7.

B8.

B9.

L5.

T3.

L4.

T3.

0 1

1:50

Scale in Meters

102 3 4 5 6 7 8 9

0 2.5 5 7.5 10

1:100

Scale in Meters


Scale 1:1250 @A1 / 1:2500@A3


Scale 1:500 @A1 / 1:1000@A3

0 25 50 75 100

1:1250

Scale in Meters

0 50 100 150 200

1:2500

Scale in Meters

0 10 20 40

1:500

Scale in Meters

30

0 25 50 75

1:1000

Scale in Meters

Client.....

Project.....

Drawing Title.....



Drawing Scale.....








Amendments


Notes

Mr J Blackwell


Proposed Extension Beam Plan

2017/040-06 C

RDS 11.01.2018

Varies @ A1/A3

Proposed Section B-B

Scale 1:50 @A1 / 1:100@A3

BUILDING REGULATIONS NOTES for Rear Extension

CDM REGULATIONS 2015

The client must abide by the Construction Design and Management Regulations 2015. The client must

appoint a contractor, if more than one contractor is to be involved, the client will need to appoint (in

writing) a principal designer (to plan, manage and coordinate the planning and design work) and a

principal contractor (to plan, manage and coordinate the construction and ensure there are arrangements

in place for managing and organising the project).

Domestic clients

The domestic client is to appoint a principal designer and a principal contractor when there is more than

one contractor, if not your duties will automatically transferred to the contractor or principal contractor.

The designer can take on the duties, provided there is a written agreement between you and the designer

to do so.

The Health and Safety Executive is to be notified as soon as possible before construction work starts if the

works:

(a) Last longer than 30 working days and has more than 20 workers working simultaneously at any

point in the project.

Or:

(b) Exceeds 500 person days.

PARTY WALL ACT

The owner, should they need to do so under the requirements of the Party Wall Act 1996, has a duty to

serve a Party Structure Notice on any adjoining owner if building work on, to or near an existing Party Wall

involves 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 metres of an existing structure where the new foundations will go deeper than

adjoining foundations, or within 6 metres of an existing structure where the new foundations are within a

45 degree line of the adjoining foundations.

A Party Wall Agreement is to be in place prior to start of works on site.

THERMAL BRIDGING

Care shall be taken to limit the occurrence of thermal bridging in the insulation layers caused by gaps

within the thermal element, (i.e. around windows and door openings). Reasonable provision shall also be

made to ensure the extension is constructed to minimise unwanted air leakage through the new building

fabric.

MATERIALS AND WORKMANSHIP

All works are to be carried out in a workmanlike manner. All materials and workmanship must comply with

Regulation 7 of the Building Regulations, all relevant British Standards, European Standards, Agreement

Certificates, Product Certification of Schemes (Kite Marks) etc. Products conforming to a European

technical standard or harmonised European product should have a CE marking.

BASIC RADON PROTECTION

Provide a 1200g (300 um) radon membrane under floor slab lapped 300mm double welted and taped with

gas proof tape at joints and service entry points. Carry membrane over cavity and provide suitable cavity

tray and weep holes.

SITE PREPARATION

Ground to be prepared for new works by removing all unsuitable material, vegetable matter and tree or

shrub roots to a suitable depth to prevent future growth. Seal up, cap off, disconnect and remove existing

redundant services as necessary. Reasonable precautions must also be taken to avoid danger to health

and safety caused by contaminants and ground gases e.g. landfill gases, radon, vapours etc. on or in the

ground covered, or to be covered by the building.

EXISTING STRUCTURE

Existing structure including foundations, beams, walls and lintels carrying new and altered loads are to be

exposed and checked for adequacy prior to commencement of work and as required by the Building

Control Officer.

BEAMS

Supply and install new structural elements such as new beams, roof structure, floor structure, bearings,

and padstones in accordance with the Structural Engineer's calculations and details. New steel beams to

be encased in 12.5mm Gyproc FireLine board with staggered joints, Gyproc FireCase or painted in

Nullifire S or similar intumescent paint to provide 1/2 hour fire resistance as agreed with Building Control.

All fire protection to be installed as detailed by specialist manufacturer.

LINTELS

For uniformly distributed loads and standard 2 storey domestic loadings only

Lintel widths are to be equal to wall thickness. All lintels over 750mm sized internal door openings to be

65mm deep pre-stressed concrete plank lintels. 150mm deep lintels are to be used for 900mm sized

internal door openings. Lintels to have a minimum bearing of 150mm on each end. Any existing lintels

carrying additional loads are to be exposed for inspection at commencement of work on site. All

pre-stressed concrete lintels to be designed and manufactured in accordance with BS 8110, with a

concrete strength of 50 or 40 N/mm² and incorporating steel strands to BS 5896 to support loadings

assessed to BS 5977 Part 1.

For other structural openings provide proprietary insulated steel lintels suitable for spans and loadings in

compliance with Approved Document A and lintel manufactures standard tables. Stop ends, DPC trays

and weep holes to be provided above all externally located lintels.

OPENINGS AND RETURNS

An opening or recess greater than 0.1m² shall be at least 550mm from the supported wall (measured

internally).

TRENCH FOUNDATION

Provide 750mm x 600mm trench fill foundations, concrete mix to conform to BS EN 206-1 and BS 8500-2.

All foundations to be a minimum of 1000mm below ground level, exact depth to be agreed on site with

Building Control Officer to suit site conditions. All constructed in accordance with 2004 Building

Regulations A1/2 and BS 8004:1986 Code of Practice for Foundations. Ensure foundations are

constructed below invert level of any adjacent drains. Base of foundations supporting internal walls to be

min 600mm below ground level. Sulphate resistant cement to be used if required. Please note that should

any adverse soil conditions or difference in soil type be found or any major tree roots in excavations, the

Building Control Officer is to be contacted and the advice of a structural engineer should be sought.

SOLID FLOOR INSULATION UNDER SLAB

To meet min U value required of 0.22 W/m²K

Solid ground floor to consist of 150mm consolidated well-rammed hardcore. Blinded with 50mm sand

blinding. Provide a 1200 gauge polythene DPM, DPM to be lapped in with DPC in walls. Floor to be

insulated over DPM with 75mm thick Celotex.

25mm insulation to continue around floor perimeters to avoid thermal bridging. A VCL should be laid over

the insulation boards and turned up 100mm at room perimeters behind the skirting, all joints to be lapped

150mm and sealed, provide 100mm ST2 or Gen2 ground bearing slab concrete mix to conform to BS

8500-2 over VCL. Finish with 65mm sand/cement finishing screed with light mesh reinforcement.

Where drain runs pass under new floor, provide A142 mesh 1.0m wide within bottom of slab min 50mm

concrete cover over length of drain.

Where existing suspended timber floor air bricks are covered by new extension, ensure cross-ventilation is

maintained by connecting to 100mm dia UPVC pipes to terminate at new 65mm x 215mm air bricks built

into new cavity wall with 100mm concrete cover laid under the extension. Ducts to be sleeved through

cavity with cavity tray over.

WALLS BELOW GROUND

All new walls to have Class A blockwork below ground level or alternatively semi engineering brickwork in

1:4 masonry cement or equal approved specification. Cavities below ground level to be filled with lean mix

concrete min 225mm below damp proof course. Or provide lean mix backfill at base of cavity wall (150mm

below damp course) laid to fall to weepholes.

PARTIAL FILL CAVITY WALL

To achieve minimum U Value of 0.28W/m²K

Provide 103mm facing brick to match existing construction. 50mm clear residual cavity, 50mm Celotex

CW4000 insulation fixed to 100mm standard block K value 0.15 (Celcon standard, Thermalite shield,

Toplite standard, Topblock Hemelite (7N).) Internal finish to be 12.5mm plasterboard on dabs with a

plaster skim. Walls to be built with 1:1:6 cement mortar.

DPC

Provide horizontal strip polymer (hyload) damp proof course to both internal 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 TIES

All walls constructed using stainless steel vertical twist type retaining wall ties built in at 750mm ctrs

horizontally, 450mm vertically and 225mm ctrs at reveals and corners in staggered rows. Wall ties to be

suitable for cavity width and in accordance with BS 5628-6.1: 1996 and BS EN 845-1: 2003

CAVITIES

Provide cavity trays over openings. All cavities to be closed at eaves and around openings using

Thermabate or similar non combustible insulated cavity closers. Provide vertical DPCs around openings

and abutments. All cavity trays must have 150mm upstands and suitable cavity weep holes (min 2) at max

900mm centres.

EXISTING TO NEW WALL

Cavities in new wall to be made continuous with existing where possible to ensure continuous weather

break. If a continuous cavity cannot be achieved, where new walls abuts the existing walls provide a

movement joint with vertical DPC. All tied into existing construction with suitable proprietary stainless steel

profiles.

CAVITY BARRIERS

30 minute fire resistant cavity barriers to be provided at at tops of walls, gable end walls and vertically at

junctions with separating walls & horizontally at separating walls with cavity tray over installed according to

manufacturers details.

WARM FLAT ROOF

(imposed load max 1.0 kN/m² - dead load max 0.75 kN/m²)

To achieve U value 0.18 W/m²K

Flat roof to be single ply membrane roofing providing aa fire rating for surface spread of flame with a

current BBA or WIMLAS Certificate and laid to specialist specification. Single ply membrane to be fixed to

22mm exterior quality plywood over 120mm Celotex Crown-Bond.

Insulation bonded to vcl on 22mm external quality plywood decking or similar approved, 1200 Gauge

Vapour Barrier on sw firings to minimum 1 in 80 fall on sw treated 50 x 150mm flat roof C24 timber joists

at 400mm ctrs to give a max span of 3.22m or as Structural details and calculations. Underside of joists to

have 12.5mm foil backed plasterboard and skim.

Provide restraint to flat roof by fixing of 30 x 5 x 1000mm ms galvanised lateral restraint straps at

maximum 2000mm centres fixed to 100 x 50mm wall plates and anchored to wall.

THIS IS A GENERAL GUIDE BASED ON NORMAL LOADING CONDITIONS FOUND IN DOMESTIC

CONSTRUCTION. IT IS YOUR RESPONSIBILITY TO ASSESS YOUR DESIGN TO ASCERTAIN

WHETHER ENGINEER'S DETAILS/CALCULATIONS ARE REQUIRED. PLEASE REFER TO THE

TRADA DOCUMENT – 'SPAN TABLES FOR SOLID TIMBER MEMBERS IN FLOORS, CEILINGS AND

ROOFS FOR DWELLINGS' OR ASK YOUR BUILDING CONTROL OFFICER FOR ADVICE.

LEAD WORK AND FLASHINGS

All lead flashings, any valleys or soakers to be Code 5 lead and laid according to Lead Development

Association. Flashings to be 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 Development Association recommendations.

INTERNAL STUD PARTITIONS

100mm x 50mm softwood treated timbers studs at 400mm ctrs with 50 x 100mm head and sole plates and

solid intermediate horizontal noggins at 1/3 height or 450mm. Provide min 10kg/m³ density acoustic

soundproof quilt tightly packed (eg. 100mm Rockwool or Isowool mineral fibre sound insulation) in all

voids the full depth of the stud. Partitions built off doubled up joists where partitions run parallel or provide

noggins where at right angles, 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.

SMOKE DETECTION

Mains operated linked smoke alarm detection system to BS EN 14604 and BS5839-6:2004 to at least a

Grade D category LD3 standard and to be mains powered with battery back up. Smoke alarms should be

sited so that there is a smoke alarm in the circulation space on all levels/ storeys and within 7.5m of the

door to every habitable room. If ceiling mounted they should be 300mm from the walls and light fittings.

Where the kitchen area is not separated from the stairway or circulation space by a door, there should be

an interlinked heat detector in the kitchen.

ROOF LIGHTS

Min 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 in accordance with manufacturer's instructions with rafters

doubled up to sides and suitable flashings etc.

NEW AND REPLACEMENT WINDOWS

New and replacement windows to be double glazed with 16mm argon gap and soft coat low-E glass.

Window Energy Rating to be Band C or better and to achieve U-value of 1.6 W/m²K. The door and

window openings should be limited to 25% of the extension floor area plus the area of any existing

openings covered by the extension.

NEW AND REPLACEMENT DOORS

New and replacement doors to achieve a U-Value of 1.80W/m²K. Glazed areas to be double glazed with

16mm argon gap and soft low-E glass. Glass to be toughened or laminated safety glass to BS 6206, BS

EN 14179 or BS EN ISO 12543-1:2011 and Part K (Part N in Wales) of the current Building Regulations.

SAFETY GLAZING

All glazing in critical locations to be toughened or laminated safety glass to BS 6206, BS EN 14179 or BS

EN ISO 12543-1:2011 and Part K (Part N in Wales) of the current Building Regulations, i.e. within

1500mm above floor level in doors and side panels within 300mm of door opening and within 800mm

above floor level in windows.

BACKGROUND AND PURGE VENTILATION

Background ventilation - Controllable background ventilation via trickle vents to BS EN 13141-3 within the

window frame to be provided to new habitable rooms at a rate of min 5000mm²; and to kitchens,

bathrooms, WCs and utility rooms at a rate of 2500mm²

Purge ventilation - New Windows/rooflights to have openable area in excess of 1/20th of their floor area, if

the window opens more than 30° or 1/10th of their floor area if the window opens less than 30°

Internal doors should be provided with a 10mm gap below the door to aid air circulation.

Ventilation provision in accordance with the Domestic Ventilation Compliance Guide.

EXTRACT TO KITCHEN

Kitchen to have mechanical ventilation with an extract rating of 60l/sec or 30l/sec if adjacent to hob to

external air, sealed to prevent entry of moisture. Internal doors should be provided with a 10mm gap

below the door to aid air circulation. Ventilation provision in accordance with the Domestic Ventilation

Compliance Guide. Intermittent extract fans to BS EN 13141-4. Cooker hoods to BS EN 13141-3. All fixed

mechanical ventilation systems, where they can be tested and adjusted, shall be commissioned and a

commissioning notice given to the Building Control Body.

BLOCK AND BEAM FLOOR VENTILATION

Provide cross-ventilation of the under floor to outside air by ventilators in at least 2 opposite external walls

of the building. Ventilation openings having an opening area of 1500mm² per metre run of perimeter wall

or 500mm² per square metre of floor area, whichever is the greater.

FLAT ROOF VENTILATION

Cross-ventilation to be provided on opposing sides by a proprietary eaves ventilation strip equivalent to

25mm continuous with fly proof screen. Flat roof insulation is to be continuous with the wall insulation but

stopped back to allow a 50mm air gap above the insulation for ventilation.

RAINWATER DRAINAGE

New rainwater goods to be new UPVC Hoppers taken and connected into 68mm dia UPVC downpipes.

Rainwater taken to new soakaway, situated a min distance of 5.0m away from any building, via 110mm

dia UPVC pipes surrounded in 150mm granular fill. Soakaway to be min of 1 cubic metre capacity (or to

depth to Local Authorities approval) with suitable granular fill and with geotextile surround to prevent

migration of fines. If necessary carry out a porosity test to determine design and depth of soakaway.

UNDERGROUND FOUL DRAINAGE

Underground drainage to consist of 100mm diameter UPVC proprietary pipe work to give a 1:40 fall.

Surround pipes in 100mm pea shingle. Provide 600mm suitable cover (900mm under drives). Shallow

pipes to be covered with 100mm reinforced concrete slab over compressible material. Provide rodding

access at all changes of direction and junctions. All below ground drainage to comply with BS EN 1401-1:

2009.

ABOVE GROUND DRAINAGE

All new above ground drainage and plumbing to comply with BS EN 12056-2:2000 for sanitary pipework.

All drainage to be in accordance with Part H of the Building Regulations. Wastes to have 75mm deep anti

vac bottle traps and rodding eyes to be provided at changes of direction.

Size of wastes pipes and max length of branch connections (if max length is exceeded then anti vacuum

traps to be used)

Wash basin - 1.7m for 32mm pipe 4m for 40mm pipe

Bath/shower - 3m for 40mm pipe 4m for 50mm pipe

W/c - 6m for 100mm pipe for single WC

All branch pipes to connect to 110mm soil and vent pipe terminating min 900mm above any openings

within 3m.

Or to 110mm upvc soil pipe with accessible internal air admittance valve complying with BS EN 12380,

placed at a height so that the outlet is above the trap of the highest fitting.

Waste pipes not to connect on to SVP within 200mm of the WC connection.

Supply hot and cold water to all fittings as appropriate.

DOOR BETWEEN HOUSE AND GARAGE

Door between garage and house to be FD30 self closing with a 100mm step down into garage, fitted with

3 steel hinges, intumescent strips and smoke seals. Construction between house and garage to be 30

minutes fire resisting.

Electric

All electrical work required to meet the requirements of Part P (Electrical Safety) must be designed,

installed, inspected and tested by a person competent to do so. Prior to completion the council should be

satisfied that Part P has been complied with. This may require an appropriate BS 7671 electrical

installation certificate to be issued for the work by a person competent to do so.

Energy Efficient Lighting

New lighting to habitable rooms to take lamps with luminous efficiency greater than 40 lumens per

circuit-watt.

Ref. Description Beam Size

Beam/Joist Details

All beams/ joists etc, subject to calculations report.

Please refer to Calculation report for full specification and bearing plate details, etc.

B7 Roof Beam

T3

L4 Window Lintel 254 x 146 x 31 UB

L5 Stressline R15A 100mm x 140mm RC LintelDoor Lintel

& B-REG Notes / Details

B8 Roof Beam

B9 Roof Beam

203 x 203 x 46 UC

178 x 102 x 19 UB

Roof Light Trimmer

L6 Door Lintel

2990

2300

Proposed Ground Floor Beam Plan

Scale 1:50 @A1 / 1:100@A3

Flat ro

of Jo

ist

150m

m x 50m

m (C

16)

@400m

m C

/C

Flat ro

of Jo

ist

150m

m x 50m

m (C

16)

@400m

m C

/C

Flat ro

of Jo

ist

150m

m x 50m

m (C

16)

@400m

m C

/C

Flat ro

of Jo

ist

150m

m x 50m

m (C

16)

@400m

m C

/C

Stressline R15A 100mm x 140mm RC Lintel

2no. 50mm x 150mm (C16)

203 x 203 x 46 UC

7

R

O

A

D

W

IN

D

L

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S

H

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1

1

1

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1

2

2

2

1

0

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2

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Bedroom

Cu

pb

'd

Kitchen

Shower

Porch

Dinning

Living Room

Utility


Study

Room

Hall

Stairs Up

1

2

3

4

5

6

7 8 9

FD

30

FD30

FD30

SD

Bedroom

Bedroom

Bathroom

Landing

Eaves Storage Eaves Storage

Stairs

Down

SVP

Cupb'd

11

12

13

14

5

6

7 8

9

10

SD

FD30

FD

30

MK06 MK06MK06MK06

Fa

ll

Fa

ll

Fall

Stairs

Down

SD

To Ground

Floor Hall

2

Towel Rail

Radiator

D

T.V

T.V

D

Radiator

Radiator

Mirror

S

SD

TD WM

Allow for Exisitng Power


To First

Floor Landing

F/S

F/S

F/S

F/S

T.V

Radiator

D D

2

2

2

2

SD

D

points to be rewired and

Replace in existing locations

Allow for Exisitng Power

points to be rewired and

Replace in existing locations

Allo

w fo

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xisitn

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2

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SD HD

Client.....

Project.....

Drawing Title.....



Drawing Scale.....








Amendments


Notes

Mr J Blackwell


Proposed Electircal Plans

2017/040-07 A

RDS 12.12.2017

Varies @ A1/A3

0 1

1:50

Scale in Meters

102 3 4 5 6 7 8 9

0 2.5 5 7.5 10

1:100

Scale in Meters


Scale 1:1250 @A1 / 1:2500@A3


Scale 1:500 @A1 / 1:1000@A3

0 25 50 75 100

1:1250

Scale in Meters

0 50 100 150 200

1:2500

Scale in Meters

0 10 20 40

1:500

Scale in Meters

30

0 25 50 75

1:1000

Scale in Meters

Proposed First Floor Electrical Plan

Scale 1:50 @A1 / 1:100@A3

Proposed Ground Floor Electrical Plan

Scale 1:50 @A1 / 1:100@A3

electrical plans

Documents