Structural timber to be Scandinavian softwood from sustainable sources graded to
comply with our consulting engineers requirements.
Timber treated with preservative in accordance with BS 5268 Part 5 1976 to comply
with current Building Regulation requirements.
Sheathing to be 9mm thick OSB (orientated strand board).
Structural fixings to be rust proofed.
All timber and wood based products on this contract will be FSC/PEFC certified.
Manufactured in panels 2400mm nom high using Ex 50 x 150mm studs (38 x 140mm
finished) at 600mm max centres and clad with 9mm OSB sheathing.
Breather membrane to BS4016 1966 pre-fixed to panels at works with nylon tape to
indicate stud positions.
The breather membrane will be extended at the sides and bottom of panels to form
Apertures in panels have lintels and cripple studs as specified by our engineer.
Manufactured as panels 2400mm nom high using Ex 50 x 100mm studs (38 x 89mm
finished) at 600mm max centres with restraining noggins as required. Apertures
formed as required with all necessary lintels and cripple studs incorporated in panels.
When walls occur along the central axis of the unit they will be manufactured in 50 x
50 nom. studwork
Some internal panels will be lined with OSB to provide additional stability during
transport and siting.
PLASTERBOARD SUPPORTS AND ADDITIONAL STUDS
Additional noggins or studs pre-fixed in panels to provide support for plasterboard at
All necessary additional support studs (below trimmers, beams etc) pre-fixed in
panels and marked for precise location on site.
Manufactured as external or internal walls to match roof profile.
CHASSIS AND FLOOR
NORMAL DOMESTIC LOADING
The floor will be constructed using a primary chassis (to each half of the structure)
comprising Glulam beams which will be pre-drilled for connection on site.
The secondary floor construction will be 18mm OSB chipboard supported by 50 x
150 joists at 600mm max. centres.
Insulation in the floor zone will be provided by Foiltec Double reflective foil
The roof construction will comprise mono pitch trussed rafters (to provide a flat
ceiling) supported by internal partitions or a Glulam ridge beam where there are no
The roof will be sheathed with 9mm OSB to provide stability and will be clad with a
breather membrane held in place by 25 x 50 counter battens
No roof tiles or tile battens included.
32 x 200 PSE fascia
32 x 150 bargeboard
FIXINGS AND SUNDRY MATERIALS
All necessary nails, bolts, connectors and fixings provided.
PVA adhesive provided for tongues on chipboard floors.
EXTERNAL JOINERY – WINDOWS AND DOORS
Factory painted softwood windows and doors.
Standard joinery from a standard proprietary range.
All doors are pre-hung in frames and are fitted with a high security locking system.
All frames are pre-glazed with 24mm Low E argon filled double glazed units with
safety glass where necessary.
The roof will be insulated with 300mm Fibreglass insulation at ceiling level vapour
The external walls will be insulated with 140mm thick fibreglass semi rigid batts with
a polythene vapour barrier.
The internal walls will be insulated with Fibreglass for acoustic purposes.
The floors will be insulated with a reflective foil membrane.
All walls and ceilings will be lined with 12.5mm plasterboard with a dry lined finish.
Decoration in Magnolia/White.
The building will be clad externally with softwood shiplap boarding fixed
The floor to the kitchen and hall will be finished with 18mm thick rustic solid oak
flooring. No other floor finishes included.
7 no single semi solid core moulded panel doors hung on loose pin butts complete
with architraves and satin anodised lever furniture.
25 x 150 moulded painted MDF skirting.
2 no. PVC loft access traps allowed (excluding loft boarding).
Painted MDF window surrounds and window boards to all windows.
PLUMBING AND ELECTRICS – PC
All plumbing and electrics included with certification and commission test.
Down lights throughout no. TBC.
White sockets and switches no. TBC.
Gas fired combination boiler with 7 radiators.
Excluded external lighting.