P574 201 (Rev A) Proposed

Proposed Floor Plans & General

Project: 2 New-Build Semi-Detached Dwellings, Land Adjacent to Council Car Park, Burley (June 2019)

Drawing No.: P574/201/1   Status: AS PROPOSED   Scale: 1:50 & as noted   Revision: A

Plans

• Front / Rear
• Elevation A / Elevation B
• Ground Floor Plan
• First Floor Plan

Legend

• Smoke detector
• Heat detector
• Ceiling mounted extractor fan
• Soil & vent pipe (SVP)
• Rainwater pipe (RWP)
• Waste pipe 32, 40 or 50Ø
• Thermal cavity closer
• Escape window (EW)
• Ø110 internal soil pipe
• Internal electrical meter
• Electrical distribution board (DB)
• Wall mounted extractor fan
• Air admittance valve (AAV)
• Threshold drainage unit (TDU)
• PIR activated light fitting with daylight cutoff
• OG obscure glazing
• CO carbon monoxide detector
• Direction of first floor joists over

Wall Legend

Internal Stud Wall 1

• 63x38mm CLS timber studs @ 400mm ctrs
• 50mm isowool acoustic insulation batts to stud cavity
• 15mm TE (taped & jointed) plasterboard (min density 10kg/m²) each side
• Provide moisture resistant plasterboard in wet rooms, washrooms & kitchens etc.

Internal Load Bearing Masonry Wall

• 7N dense concrete blocks
• 12.5mm plasterboard (taped & jointed) on 10mm dabs to both sides

External Wall

• 100mm face brickwork to external skin (see elevations)
• 125mm cavity
• 75mm Celotex CW4000 insulation board secured to inner skin
• 100mm aircrete thermal blocks as inner skin (minimum K value of 0.11 or better)
• 12.5mm plasterboard taped & jointed on 10mm dabs

Internal Stud Wall 2

• 63x38mm CLS timber studs @ 400mm ctrs
• 50mm isowool acoustic insulation batts to stud cavity
• 9mm plywood sheathing fixed to each stud side-face
• 15mm TE (taped & jointed) plasterboard (min density 10kg/m²) each side

Dividing Compartment Wall; Robust Details Wall Type “E-WM-4”

• 75mm central cavity filled with dri-therm cavity wall insulation (max density of 40kg/m³)
• 100mm solid concrete blocks to both skins; density 1350 to 1600kg/m³
• 8mm 6:1 sand & cement scratch-coat render to each block face
• 1 layer of 12.5mm sound-block plasterboard on 10mm dabs to each block face over scratch-coat render

Window Schedule

Structural opening sizes (in mm) — bespoke wooden sliding sash units by Howarth Joinery.

• W1: 1022(w) x 1275(h)
• W2: 685(w) x 1050(h)
• W3: 1022(w) x 1050(h)
• W4: 797(w) x 1050(h)

• Rapid/purge ventilation to be provided by vertical sliding sashes equivalent to an area @ least 1/20th of the floor area of each habitable room.
• Provide obscure glazing to all bathrooms & WC’s.
• Overall glazing U-values as specified in SAP assessors calculations & project notes.
• Overall glazing G-Factor as specified in SAP assessors calculations & project notes.
• Provide first floor escape windows where indicated “EW”. See also Fig. 16.
• Check site dimensions before fabrication.
• Dimensions stated exclude stone sills and headers.
• All modules to be painted in accordance with LPA requirements.
• Safety glazing to be provided in critical areas (below 800mm) complying with BS6206:1981.

Background Ventilation Schedule (for both plots)

Target based on gross floor area of 99 square meters is an overall free area of 65,000 square millimeters derived from Table 5.2a of Approved Document F. Also refer to the ventilation paragraph in the construction notes.

Doc. M Internal Door Clearance & Corridor Minimum Width Criteria

Door Schedule

External doors (structural openings)

• D1: 1023(w) x 2100(h) — principle main entry door with mobility Doc M compliant threshold to site spec. Approximate leaf size = 900mm x 2030mm.
• D2: 1585(w) x 2100(h) — Howarth Securitherm high performance double door set. Approximate leaf size = 727mm x 2030mm.
• D3: removed from schedule

Internal doors (leaf sizes)

• D4: 838(w) x 1980(h) — internal door
• D5: 762(w) x 1980(h) — internal door
• D6: 686(w) x 1980(h) — internal door
• D7: 610(w) x 1980(h) — internal door

• The main ground floor entrance door thresholds are to be sloped/tapered to provide disabled access, with a minimum clear opening width of 800mm.
• Provide 10mm air gap below bathroom & WC doors.
• Doors marked * are to be cut to size in accordance with building profile.
• All fitted within suitable linings or frames.
• Check site dimensions before fabrication.
• All external door U-values as specified within SAP assessors calculation & project notes.
• All modules to be painted wood in accordance with LPA requirements. External leaf sizes stated above are for indication purposes only.

Physical Protection / Structure

Doors and Windows (to include all out-buildings): All entrance and external doorsets and all ground floor windows are to be tested to a PAS24 standard and accord with Secure by Design (SBD) advice on locking systems. Windows to be certificated to BS7950:1997. Laminate glazing to all ground floor doors and windows will be installed subject to ALO/CPDA recommendations for site specific risk.

Notes

• Internal electrical meters & DB’s secreted at correct height within cupboard.
• Ground level gas meter box’s: contractor to provide suitable low output log burners in accordance with energy assessors and client requirements.
• Note: the location (& configuration) of structural steel or timber beams & posts shown on these plans is notional. Exact locations are to be determined on site, & in accordance with structural engineers’ & fabricators details. All steelwork is to be fire protected for 30 minutes (see notes).
• Fire place & hearth’s: see notes.
• Provide cavity closer’s @ all separating/flanking wall junctions in accordance with robust details (see Fig 7).
• Chimney/flue’s constructed as per specialist details (see proprietary drawing by Schiedel).
• Joist manufacturer to ensure & provide in line joists or support noggins below parallel stud walls.
• Refer to Fig. 16 for criteria regarding escape windows.
• Install waste manifold at base of stack for possible future wet room floor gully.
• SVP’s within casings to be wrapped (see notes).
• Hatched area in front of WC’s indicate Doc M 900 wide x 750 deep access clearance area (see notes).
• Doc M ramp, level landing & threshold: see section A-A.

Figures

Fig. 7: Separating / flanking wall junction plan (1:20) — close cavity with proprietary flexible cavity stop with vertical DPC.

Fig. 16: Escape window clearance detail (1:20) — finished floor level; openable area to be at least 0.33 square meters, & at least 450mm high & 450mm wide; 800mm-min base of openable area; 1,100mm-max.

NOTE: Residential sprinkler systems are to be installed to each dwelling. See construction notes.

Practice / Contact

AVON PROJECT SERVICES
3 Wren Close, Hightown, Ringwood, Hants, BH24 3RF
Tel/Fax: 01425 472217
Web: avonserve.com
e: info@avonserve.com

Revisions / Amendments

General Notes / Disclaimer

• Original scale size 100mm — this drawing may have been reduced.
• Scaling for reference only; written dimensions shall govern.
• Copyright APS Ltd. All rights reserved. This drawing may not be copied or re-used in whole or in part, without the written consent of APS Ltd.
• This drawing is for general reference and the purposes of obtaining local authority (or approved inspectorate) approvals only. This is not a working drawing.
• All final dimensions must be determined on site at the setting out stage of the works.
• Discrepancies are likely, and if necessary are to be verified with client/agent before work proceeds.
• It is the responsibility of the client and the appointed building contractor to observe all relevant health and safety rules including the Construction (Design & Management) Regulations, the Party Wall Act, the Construction Act, all as applicable.
• This drawing must be read in conjunction with all other relevant associated drawings & documents specifically prepared for this project, including details & calculations by structural engineers, energy (SAP) assessors, & all other external consultants, & other particular site specifications.
• To view all information accurately, this drawing is to be printed as seen on screen PDF with all DWG plot styles (coloured/shaded where applicable) displayed.

Elevations & Construction Notes

Project: 2 New-Build Semi-Detached Dwellings, Land Adjacent to Council Car Park, Burley (June 2019)

Drawing No.: P574/201/2   Status: AS PROPOSED   Scale: 1:100 & as noted   Revision: A

Elevations

• Front elevation
• Rear elevation
• Side elevation A
• Side elevation B

Notes (Elevations / External)

• Plain roof tiles to LPA approval.
• Face brickwork to LPA approval.
• Howarth timber vertical sliding sash windows on buff stone sills with IG spayed arch over (see separate detail).
• Howarth Securitherm high performance double door sets.
• Joinery finish: RAL 9001 — Country Cream.
• Alumasc “heritage” powder-coated aluminum ogee gutters & down pipes.
• 125 x 50 exposed (feature) rafter feet (see section A-A).
• Periscope vent.
• Air bricks @ 2000 ctrs (max).
• Chimney trays & Code 4 lead flashings.
• Minimum height above ridge = 600mm.
• DPC stepped in accordance with topography & maintained @ least 150mm above ground level.
• Bats: bat roosting boxes located within external brickwork as high as possible in gable ends (see eco-mitigation report for full details).
• Swift nesting boxes (Woodstone) located near to eaves (see eco-mitigation report for full details).
• NOTE: Residential sprinkler systems are to be installed to each dwelling. See construction notes.

Legend (Elevations)

• FT: boiler flue terminal
• ET: extractor fan terminal
• EW: escape window
• OG: obscure glazing

Construction Notes & Specification

General

1. It is the responsibility of all contractors to ensure that all materials & components are suitable for their intended purpose & location. They must be manufactured & installed in accordance with all relevant codes of practice, building regulation/NHBC requirements, & manufacturers specification. Any reference to an approved document (or sometimes “PART”) in this specification, refers to an approved document of the building regulations.
2. Generally dimensions shown are in mm & taken from bare masonry, timber & steel frame structures.
3. Proprietary products indicated may be substituted with an approved equivalent or superior.
4. Appliance & fitting (with particular reference to electrical sockets, light fittings, switch gear & radiators etc.) positions shown on plans are for indication purposes only; precise locations are to be determined on site in accordance with client, manufacturers, legislation or end-user requirements. These symbols do not in no way support or represent any kind of mechanical or electrical design or layout.
5. Bathroom & kitchen layouts are notional & intended for indication purposes only. Designs will be subject to precise client requirements & specialist appraisal.
6. Refer to structural engineers drawings & specifications for full & accurate structural information.
7. Report all inconsistencies, errors or omissions. If in doubt ask.

Ventilation

1. All new window frames to be supplied with trickle vents providing a minimum free ventilation area of 2,500 sqmm for kitchen utility rooms, bathrooms and separate sanitary accommodation, & 5000 sqmm for all other habitable rooms.
2. Dwellings are to be provided with a minimum of background ventilation as detailed in their respective schedules. This has been calculated in accordance with Table 5.2a of Approved Doc. F. Ensure the minimum requirements for each room are to be met in accordance with point 1 above. Overall dwelling cross ventilation should be achieved by locating ventilators across at least 2 facades. If the dwelling only has one external facade, circulation may be achieved by placing ventilators at high & low level within each room. Additional ventilators other than trickle vents located in window or door frames, may be tube type vents through the masonry walls.
3. Bathrooms & shower rooms are to be fitted with an extract fan to move no less than 15 litres/sec. WC’s (without open-able windows) are to be fitted with extract fans to move no less than 6 litres/sec. All extract fans are to be operated by pull cord light switch with a 30 minute over-run. Fan ducts are to terminate externally through proprietary vent/ridge tiles, walls or soffits with suitable terminals or grilles.
4. Manually operated extractor fans to be installed to kitchens & utility rooms to move no less than 30 litres/sec. Those not directly over kitchen hob are to move no less than 60 litres/sec.
5. All fans shall be sized & selected according to overall ductwork length, number of bends & overall resistance.
6. Rapid/purge ventilation (open-able windows) are to form a minimum of one twentieth of the floor area of each habitable room.

Above & Below Ground Drainage

1. All vented soil stacks are to terminate at least 1000mm above & 3000mm horizontally away from the nearest opening window.
2. Horizontal runs to have an optimum fall of 1:40 or a minimum of 1:80.
3. Install suitable access ways to ensure all linear runs are accessible for rodding.
4. Above ground runs to be fixed at regular intervals according to manufacturers recommendations using clips and proprietary fixings.
5. All sanitary appliances to be fitted with anti-vac resealable traps with 75mm seal.
6. Drains below floor slabs will have 100mm of pea shingle around the pipes. If the crown of the pipe is within 300mm of the slab underside, they will be encased with concrete.
7. Disused drains are to be capped with an air tight seal.
8. Tube diameters: WC & main drain runs 110Ø; bath, shower & sink 40Ø; basins & bidet 32Ø; all metric UPVC. Waste pipe runs (bath, basin, shower, sink etc.) exceeding 2.5m shall be up-sized to 50Ø.
9. Below ground drains passing through footings will be sleeved or bridged using pre-stressed concrete lintels (refer to Fig 1.1).
10. All SVP’s within casings & floor voids are to be wrapped in 1 layer of mineral wool insulation quilt with a minimum thickness of 25mm & density of 10kg/m³.
11. Air admittance valves may be used as SVP terminals where necessary & appropriate, and with the knowledge & permission of the building control surveyor. Ensure valves are made accessible and are above the flood level of the highest sanitary appliance.

Water Efficiency

1. Water efficiency calculations are to be provided (for each unit) to demonstrate that the required amount of 125 litres per head per day is not exceeded.
2. A schedule of manufacturers details of the proposed fittings & appliances is to be also supplied confirming adherence to the calculations referred to in point 1 above.
3. Provide a mixer/blending valve on all hot water supplies to bath taps. Temperature is not to exceed 48°C. The blender valve is to be located as close to the outlet as possible.

Fire Alarm

1. A mains fed smoke/fire detection & alarm system shall be installed to each dwelling unit, with full battery back up. The system shall be installed in accordance with BS 5839-6:2004 to at least a grade D category LD3 standard.
2. All detectors within are to be interlinked.
3. The fire alarm system shall be serviced and maintained in accordance with the manufacturers guidelines and instructions.

Residential Sprinkler Systems

1. Residential sprinkler systems are to be installed to each dwelling unit.
2. The systems are to be designed and installed in accordance with BS 9251:2005, as well as:
   • Sprinkler Systems for Residential & Domestic occupancies
   • Relevant Codes of Practice
   • DD 252:2002, Components for Residential Sprinkler Systems
   • Specification & Test Methods for Residential Sprinklers

New Walls

1. Provide movement joints in external leaf cavity walls. Joints to be formed vertically in masonry panels at locations to suit brick, block or stone manufacturers specification & structural engineer’s details. Joints are to be filled with 2 part polysulphide sealant to match colour of facing bricks/render. Notwithstanding any locations shown on drawings, the location and width of movement joints should be assessed having regard to the geometry of each particular configuration in accordance with BS5628, Part 5:1985 and with brick/block manufacturer’s recommendations. Wherever possible, locate joints behind rainwater pipes. Additional wall-ties to be installed 100mm each side of joint at 225 vertical centres. Dry butt contracting joints to be formed in internal block work vertically at locations to suit structural engineer’s details.
2. Install stainless steel wall ties @ 600mm ctrs horizontally, & 450mm ctrs vertically. Wall ties are to be compliant with Approved Document A, & Approved Document E in the case of wall ties for compartment walls.
3. Use 7N dense concrete blocks in all foundation walls below ground.
4. Reduce thermal bridging by extending insulation into jambs & sills, & install Thermabate or similar approved cavity closers at reveals as shown.
5. Lintels are to be a “Hi-Therm” IG or similar approved, with a minimum end bearing of 150mm. Those over 1800mm are to be heavy duty.
6. The DPC is to be a minimum of 150mm above ground level, & stepped in accordance with the topography of the site.
7. Provide moisture resistant plasterboard to all kitchens & bathrooms.
8. Provide adequate fixings within dry/studwork walls to allow the safe mounting of significant fixtures & fittings (e.g. kitchen units, boilers etc.).
9. Provide parapet walls/chimney stacks with a suitable DPC treatment so as to prevent the downward ingress of moisture into the wall structure.
10. Include waterproofing admixture to all render coatings.
11. Provide a vertical DPC to all returns when cavity closers are absent.
12. Close off all cavities at head with suitable non combustible material.

Protection of Structural Load Bearing Members

1. Steel structural members such as columns & beams are to be encased in compartments covered in 2 layers of 12.5mm plasterboard to achieve a fire resistance rating of 30 minutes; alternatively use 1 layer of 15mm fireline board. Externally use suitable weather resistant material. Fireline board is to extend at least 1 meter either side the proximity of a steel beam when forming a flat ceiling below & beam is situated within a floor joist cavity.
2. Exposed structures or parts of will be treated by other appropriate means (e.g. approved protective coatings from Hydron or similar) to achieve the required fire resistance rating of 30 minutes. Protective coatings (recommended) may also be used if desired as an alternative to plasterboard casings detailed above.

Pressure Testing

1. A pressure test to assess the air permeability rate of the new dwellings is to be carried out by an approved contractor. See SAP assessor calculations and project notes for permissible air permeability rate.
2. Strict attention will need to be paid to the sealing of all openings and service penetrations in the external envelope of the construction to prevent potential air leakage. It is advised that the 8mm sound-coat render usually specified for separating walls is also applied to the inner leaf of the external walls. Workmanship shall be diligently supervised & be of the highest quality during all phases of the build. Use checklists provided in Appendix A of Approved Document L1A.
3. The design information in these drawings is to be read in conjunction with the SAP calculations & the following “accredited detail publications” to minimize the effects of thermal bridging & improve overall building performance with respect to air tightness:
   • “Masonry cavity wall insulation details”
   • “Masonry internal wall insulation details”
   • “Masonry external wall insulation details”

Fire Place & Hearth

1. Flue is to be installed in accordance with Approved Document J, & proprietary details provided.
2. Provide a permanent air entry opening or openings (i.e. through the wall vents or air bricks) with a total free area of at least 550 square mm per kW rating of appliance rated above 5kW or as detailed in solid fuel appliance manufacturers instructions.
3. A durable notice detailing the design information of:
   • the chimney flue size
   • the performance capabilities of the hearth
   • fireplace & flue installation
   • the available free ventilation area provided by through the wall ventilators or air bricks
   is to be displayed at a prominent position within the dwelling (see diagram 16, Approved Doc. J).
4. The hearth should be made from non combustible materials & have a minimum upstand of 75mm over any floor finishes, project from the face of the chimney breast by at least 500mm, and overlap the recess each side by at least 150mm.
5. A mains fed type A carbon monoxide detector is to be fitted in each lounge area compliant with BE EN50291. The detector is to be located on the ceiling between 1m & 3m horizontally from the appliance.

Cavity Wall Chimney Stack

1. To be in accordance with Approved Doc. J and proprietary details provided.
2. The flue terminal will project beyond the roof slope by at least 1 meter.
3. The flue terminal will be a minimum horizontal distance away from the roof slope of 2.3 meters. If not, to be at least 600mm higher than ridge.
4. The chimney is to be no higher than 4.5 times its narrowest width.

Leadwork

To be laid according to all relevant codes of practice, with particular reference to “Rolled Lead Sheet, the Complete Manual”. Provide Code 4 lead for all flashings & cavity trays, & Code 5 lead for all box gutters & valleys.

Glazing

1. New glazed windows and external doors will achieve a minimum U and G values as stated in the SAP assessors calculations and project notes.
2. They will be double glazed with a 16mm air gap and a soft low E coating. Safety glazing to be provided in critical areas complying with BS6206:1981.

Electrical Installations

1. The electrical installations shall be carried out in accordance with Approved Document P, BS 7671 (IEE regulations), & the Electricity at Work Regulations 1989.
2. The installation will need to be subject to the submission of an “electrical installation certificate” and the test results are to be carried out by a qualified N.I.C.E.I.C registered engineer, who is trained in the testing procedures. A copy of the test & the certificates must be sent to building control or other approved inspectorate.

Disabled Provision & Access

1. The clearances around the principle ground floor WC & main first floor bathroom will be as indicated on the floor plans & in accordance with the CSH “lifetime homes” publication. Refer to M/A drawing no. 0280/P541/301 for further information. The external approach to the main entry doors, and the main external circulation areas will be firm & level to suit wheelchair users and those on crutches (cross falls at 1:40 or greater are deemed as level) & relatively smooth & be at least 900mm wide. Mortar joints between slabs or paviors will be pointed flat. Adjoining landscapes such as branching paths or driveways will be flush at the adjoining surface. If ramped approaches are to be used due to the topography of the site, they are to be no steeper than 1:15. Ramps longer than 10m shall have top, bottom & intermediate landings (if required), of a length of no less than 1.2m.
2. The principle external dwelling front entry doors will have a clear opening of not less than 775mm, and a suitable Document M compliant mobility threshold to allow disabled access (see Section A-A).
3. Light switches & fused spurs are to be 1,160mm from finished floor level to the centerline; socket outlets will be 550mm.
4. Service controls should be within a height band of 450mm to 1200mm from finished floor level, & at least 300mm away from an internal corner.

Cavity Trays & Flashings

1. Provide suitable flashings with a minimum 150mm upstand where an adjoining roof abuts masonry flanking walls & chimney stacks.
2. Step flashings are to be provided where the roof abuts the wall at an angle.
3. Cavity trays are to be linked to flashings in all cases, & stepped in the case of a stepped flashing. Cavity trays must rise across the cavity by a minimum of 140mm in accordance with building regulations & NHBC requirements. Weephole drains are to be provided at base of cavity tray in perpendicular brickwork joints @ 1,500mm ctrs (approx).
4. Cavity trays are to be provided over all cavity openings, including windows, doors and meter boxes etc.

Heating Systems

1. The wet heating system shall be insulated & controlled in accordance with Approved Document L, & the “Domestic Heating Compliance Guide”.
2. All dwellings are to be heated using wet systems powered by a gas boiler. Individual wall hung radiators are to be used as heat emitters to all rooms and adjoining areas.
3. Boiler flue terminals directed at, & within 2.5m of a boundary, must be fitted with an approved “anti-pluming” device.
4. Installations will be undertaken by a GASAFE registered installer. The appropriate benchmark certificates will be issued by the installer upon completion of the works.
5. Provide new condensing/high efficiency boilers with a minimum SEDBUK efficiency rating as noted within the SAP assessors calculation package (see SAP input & survey notes documents). Contractors are to check boilers are compliant with SAP assessor’s calculations prior to installation. Ensure each boiler is capable of illustrated flue exit run. Ensure boiler compartments provide adequate clearances prior to construction & installation.
6. Heating controls are to be installed as indicated within the SAP assessors calculations (see SAP input & survey notes documents).
7. It is the responsibility of the appointed contractor to ensure that the construction design details shown in these drawings and used in the checklist of the SAP calculations are adhered to. Use checklists provided in Appendix A of Approved Document L1A. Failure to do so may result in the final EPC being withheld.

Stairs

1. Manufacturer is to check site dimensions before fabrication.
2. Minimum going: 220mm; max rise: 220. Twice the rise + the going is to be between 550 & 700mm.
3. The maximum pitch angle shall not exceed 42°.
4. Minimum headroom above pitch line to be no less than 2000mm.
5. Minimum going on tapered treads shall be 50mm.
6. Hand rails shall be fitted to at least one side and be between 900 & 1000mm above the pitch line and shall not be climbable.
7. Hand rails & guarding to landings are to be at least 900mm high and designed to withstand a sideways force of 0.36kN/m.
8. There are to be no openings within any stair risers, guarding or balustrades that would permit a sphere greater than 100mm in diameter to pass through.
9. All handrails and balustrades are to be designed in such a way that they are not climbable.

Light Fittings

High efficiency light fittings capable of accepting lamps having a luminous efficacy greater than 40 lumens per circuit watt are to be fitted to all areas, including all those external & the cycle store.

Services

• A separate metered water, gas, electricity & telephone/broadband supply will be provided to all new dwellings.
• Each dwelling is to be fitted with a network termination point for high speed electronic communication networks, in accordance with Approved Doc R.

Practice / Contact

AVON PROJECT SERVICES
3 Wren Close, Hightown, Ringwood, Hants, BH24 3RF
Tel/Fax: 01425 472217
Web: avonserve.com
e: info@avonserve.com

Revisions / Amendments

General Notes / Disclaimer

• Original scale size 100mm — this drawing may have been reduced.
• Scaling for reference only; written dimensions shall govern.
• Copyright APS Ltd. All rights reserved. This drawing may not be copied or re-used in whole or in part, without the written consent of APS Ltd.
• This drawing is for general reference and the purposes of obtaining local authority (or approved inspectorate) approvals only. This is not a working drawing.
• All final dimensions must be determined on site at the setting out stage of the works.
• Discrepancies are likely, and if necessary are to be verified with client/agent before work proceeds.
• It is the responsibility of the client and the appointed building contractor to observe all relevant health and safety rules including the Construction (Design & Management) Regulations, the Party Wall Act, the Construction Act, all as applicable.
• This drawing must be read in conjunction with all other relevant associated drawings & documents specifically prepared for this project, including details & calculations by structural engineers, energy (SAP) assessors, & all other external consultants, & other particular site specifications.
• To view all information accurately, this drawing is to be printed as seen on screen PDF with all DWG plot styles (coloured/shaded where applicable) displayed.

Foundation & Roof Plan

Project: 2 New-Build Semi-Detached Dwellings, Land Adjacent to Council Car Park, Burley (June 2019)

Drawing No.: P574/201/3   Status: AS PROPOSED   Scale: 1:100 & as noted   Revision: PA

Note: Block & beam floor manufacturer to provide the required calculations & installation details to the building control inspectorate.

Plans

• Foundation plan
• Roof plan

Legend

• Soil & vent pipe (SVP)
• Rainwater pipe (RWP)
• Indicates beam joist direction

Foundation Notes

1. Provide 225 x 65 air bricks (@ 2m centers max) in below ground partition walls for air flow continuity (excludes compartment walls).
2. All setting out dimensions & locations are to be determined by contractor on site.
3. All below ground masonry is to be 7N dense concrete blockwork.

Foundation Wall Legend

External Wall Below Ground Level

• 100mm concrete blocks to outer skin
• 125mm cavity
• 100mm concrete blocks to inner skin

Internal Load-Bearing Wall

• 100mm 7N concrete blocks

Stud Walls Built Off Ground Floor

Stud walls built off ground floor.

Dividing Compartment Wall; Robust Details Wall Type “E-WM-4”

(See generic section B-B & main wall legend.)

Additional Notes

• Bold dashed lines indicate perimeter of footings in accordance with building control approval to be a minimum depth of 1 meter.
• Wide gray lines indicate footings on south east flank & partial rear/front to be at least 1200mm deep in accordance with structural engineers details.
• Valley gutter gradient 1:40.
• Compartment cavity wall to continue to full height, terminating at underside of roof slope with a flexible mineral wool fire stop. Provide lateral restraint ties at 2m ctrs in accordance with Fig. 6.
• Trussed roof construction (@ circa 400 centers) to specialist design. Full details to follow. Roof trusses to be braced in accordance with BS 5268: Part 3:1988.
• SVP’s extended to terminate @ least 900mm above nearest window.
• Standard truss config (as indicated).
• 1000 dp min (as indicated).

Practice / Contact

AVON PROJECT SERVICES
3 Wren Close, Hightown, Ringwood, Hants, BH24 3RF
Tel/Fax: 01425 472217
Web: avonserve.com
e: info@avonserve.com

General Notes / Disclaimer

• Original scale size 100mm — this drawing may have been reduced.
• Scaling for reference only; written dimensions shall govern.
• Copyright APS Ltd. All rights reserved. This drawing may not be copied or re-used in whole or in part, without the written consent of APS Ltd.
• This drawing is for general reference and the purposes of obtaining local authority (or approved inspectorate) approvals only. This is not a working drawing.
• All final dimensions must be determined on site at the setting out stage of the works.
• Discrepancies are likely, and if necessary are to be verified with client/agent before work proceeds.
• It is the responsibility of the client and the appointed building contractor to observe all relevant health and safety rules including the Construction (Design & Management) Regulations, the Party Wall Act, the Construction Act, all as applicable.
• This drawing must be read in conjunction with all other relevant associated drawings & documents specifically prepared for this project, including details & calculations by structural engineers, energy (SAP) assessors, & all other external consultants, & other particular site specifications.
• To view all information accurately, this drawing is to be printed as seen on screen PDF with all DWG plot styles (coloured/shaded where applicable) displayed.

Section A-A

Project: 2 New-Build Semi-Detached Dwellings, Land Adjacent to Council Car Park, Burley (June 2019)

Drawing No.: P574/201/4   Status: AS PROPOSED   Scale: 1:20   Revision: PA

Section Notes

• 40° (roof pitch indicated).
• 100x25 close boarding fixed between rafters to mask felt from underside. Boarding to be painted or stained to match weathering goods and joinery.
• Trimming to floor specialists details.
• Minimum level landing length = 1200mm.
• ACO threshold drainage channel (or similar) with outlet.
• Doc M compliant door threshold.
• Liquid DPM applied to brickwork.
• DPC/cavity closer.
• Ensure minimum 2m headroom over pitch-line of stairs.
• Alumasc “heritage” ogee rainwater goods.
• 125x50 exposed feature rafter feet @ circa 400 centres (trusses to be spaced @ circa 400 centres for sake of external appearance).
• Gutter fixing board (depth of gutter only).
• Face brickwork to external skin to LPA approval.
• Celotex CW4000 secured to inner skin.
• 100mm thermal aircrete blocks as inner cavity leaf (K value: 0.11 or better).
• Stone sills with side stools.
• Bespoke IG segmented arch; hi-therm lintel configuration.
• Window frames to be set in approximately half a bricks width.
• Stub sills.
• Foundations to suit local ground conditions; details & building control approval. To be excavated to a minimum depth of 1m on exposed load-bearing strata.
• Concrete cavity fill to terminate @ least 225mm below DPC.
• Block & beam floor to specialist design; full details to follow.
• Maintain @ least 225mm clear void below block & beam floor.
• Provide DPC directly below B&B floors.
• 75mm sharp sand & cement 4:1 screed with D49 mesh or fibrous additive.
• 150mm Celotex (or similar) floor tuff R insulation board.
• 500 gauge DPM over Celotex insulation board.
• 1200 gauge DPM laid direct to B&B floor.
• 12.5mm t/e taped & jointed plasterboard on 10mm dabs; continuous adhesive ribbon to all wall board perimeters.
• Maximum height difference between floor finish & top of threshold to be no more than 15mm.
• Provide hi-therm lintels above all structural openings.
• 12.5mm foil-backed plasterboard taped & jointed.
• Close all cavities @ head with flexible mineral wool batt fire stop in accordance with Part E robust details.
• 100x50 C16 wall plate held down with L-shaped galvanized steel straps @ 2000mm (maximum) centres.
• 1 layer of Procter Roofshield breathable underlay fixed to top-side of trusses.
• Plain roof tiles to LPA approval.
• Rafters/roof trusses/floor joists to be laterally restrained to flanking & gable walls as indicated in Fig. 6.
• Trussed roof construction to specialist design; full details to follow. All roof trusses to be braced in accordance with BS 5268: Part 3:1988.
• 240mm deep “FJI joists” to specialist design; full details to follow.
• 1 layer of 15mm plasterboard securely fixed to underside of FJI joists, taped & jointed.
• 22mm weather resistant chipboard T&G flooring to first floor.
• 400mm (min) Rockwool insulation to roof spaces and voids: 2 no. 150mm layers, 100mm top layer; all layers laid perpendicular to each other. Minimum density = 10kg/m³.
• Bespoke vertical sliding sash windows by Howarth Joinery.
• New bespoke staircase & guardings in accordance with Approved Doc. K to specialist design (see construction notes).
• Install proprietary eaves protection device such as Tyvek eaves carrier or similar.

Fig. 6

Rafter/joist lateral restraint tie detail (1:20): 5mm galvanized steel strap fixed to timbers & built into cavity @ 2m centres; flanking cavity wall; floor joists, trusses or roof rafters; support noggins; half joist/rafter depth.

Practice / Contact

AVON PROJECT SERVICES
3 Wren Close, Hightown, Ringwood, Hants, BH24 3RF
Tel/Fax: 01425 472217
Web: avonserve.com
e: info@avonserve.com

General Notes / Disclaimer

• Original scale size 100mm — this drawing may have been reduced.
• Scaling for reference only; written dimensions shall govern.
• Copyright APS Ltd. All rights reserved. This drawing may not be copied or re-used in whole or in part, without the written consent of APS Ltd.
• This drawing is for general reference and the purposes of obtaining local authority (or approved inspectorate) approvals only. This is not a working drawing.
• All final dimensions must be determined on site at the setting out stage of the works.
• Discrepancies are likely, and if necessary are to be verified with client/agent before work proceeds.
• It is the responsibility of the client and the appointed building contractor to observe all relevant health and safety rules including the Construction (Design & Management) Regulations, the Party Wall Act, the Construction Act, all as applicable.
• This drawing must be read in conjunction with all other relevant associated drawings & documents specifically prepared for this project, including details & calculations by structural engineers, energy (SAP) assessors, & all other external consultants, & other particular site specifications.
• To view all information accurately, this drawing is to be printed as seen on screen PDF with all DWG plot styles (coloured/shaded where applicable) displayed.

Sections B-B, C-C & D-D

Project: 2 New-Build Semi-Detached Dwellings, Land Adjacent to Council Car Park, Burley (June 2019)

Drawing No.: P574/201/5   Status: AS PROPOSED   Scale: 1:20 & 1:10   Revision: PA

Part E Robust Detail (separating walls) E-WM-4

• Keep cavity and wall ties free from mortar droppings and debris.
• Only (Doc. E compliant) tie type A wall ties are to be used.
• Fully fill all blockwork joints with mortar to full depth.
• Keep any chases to a minimum and fill well with mortar. Stagger chases either side of the compartment wall to avoid them being back to back.
• Joints around first floor joists (when built in) are to be well filled with mortar, and finally sealed with flexible acoustic mastic.
• Use checklists within the robust details manual to ensure the correct construction methods are adhered to.

Section B-B (Robust Detail Separating Wall Details - Typ.)

Wall type: E-WM-4   Scale: 1:20

• 100mm solid concrete blocks to both skins; block density 1350 to 1600kg/m³.
• Dri-therm cavity fill with a maximum density of 40kg/m³.
• 8mm sand & cement parge coat render (10kg/m² min) to both sides.
• 1 layer of 12.5mm t/e sound block (taped & jointed) plasterboard on 10mm dabs to each side.
• Continuous adhesive ribbon to all wall perimeters in accordance with Part E robust details.
• Construction details as annotated on Section A-A.
• Ensure gaps between floor blocks are well filled with mortar.
• Continuous adhesive ribbon to all wall-board perimeters.
• Joints around floor joists well filled with mortar, and finally sealed with flexible acoustic mastic.
• 225mm minimum void below B&B floor.
• Cavity separating wall continuous to footing.
• Ensure all gaps around floor beams (& blocks) are well filled with mortar.
• All wall/ceiling junctions to be sealed with tape caulked with acoustic sealant.
• Junction between separating wall & underside of roof filled with fire stop flexible closer.
• First floor joist cavity (graded).
• 18mm exterior ply deck forming valley base.

Section C-C (1:10)

• Polyroof® GRP covering to valley gutter installed by approved specialist contractor.
• Primary ply base.
• Junction between separating wall & underside of primary valley deck filled with fire stop flexible closer.
• Firrings cut to achieve optimum gradient of 1:40.
• Construction details as annotated on sections A-A & B-B. Loft insulation omitted for clarity.
• RD wall type E-WM-4 bottom chord extended to fully bear on each leaf & masonry built around to encapsulate.

Section D-D (1:10)

• Construction details as annotated on sections A-A & B-B.
• Section D-D is a suggested detail only.
• External/internal DPM tanking membranes & protection boards are to be supplied & installed by specialist who will be responsible for its design. Manufacturer design details to be approved by building control inspectorate prior to installation.
• External tanking membrane & protection board.
• External Hy-load DPC stepped in accordance with topography of site.
• Cavity tray to rise 140mm through cavity with weep-hole drains @ base at no more than 1500 centers (see notes).
• 100mm grade 32 dry-therm full-fill cavity insulation below tray.
• Internal tanking membrane turned up inner leaf & turned into blockwork @ head by at least 40mm.
• Internal tanking membrane returned under, lapped by @ least 200mm & sealed over 1200 gauge DPM covering base of B&B slab.
• Protective Hy-load DPC over membrane.
• Celotex CW4000 secured to inner skin.

Practice / Contact

AVON PROJECT SERVICES
3 Wren Close, Hightown, Ringwood, Hants, BH24 3RF
Tel/Fax: 01425 472217
Web: avonserve.com
e: info@avonserve.com

General Notes / Disclaimer

• Original scale size 100mm — this drawing may have been reduced.
• Scaling for reference only; written dimensions shall govern.
• Copyright APS Ltd. All rights reserved. This drawing may not be copied or re-used in whole or in part, without the written consent of APS Ltd.
• This drawing is for general reference and the purposes of obtaining local authority (or approved inspectorate) approvals only. This is not a working drawing.
• All final dimensions must be determined on site at the setting out stage of the works.
• Discrepancies are likely, and if necessary are to be verified with client/agent before work proceeds.
• It is the responsibility of the client and the appointed building contractor to observe all relevant health and safety rules including the Construction (Design & Management) Regulations, the Party Wall Act, the Construction Act, all as applicable.
• This drawing must be read in conjunction with all other relevant associated drawings & documents specifically prepared for this project, including details & calculations by structural engineers, energy (SAP) assessors, & all other external consultants, & other particular site specifications.
• To view all information accurately, this drawing is to be printed as seen on screen PDF with all DWG plot styles (coloured/shaded where applicable) displayed.