PHT44 – Passivhaus Twin Stud Timber Frame Intermediate Floor

Price range: £9.00 through £14.00 + VAT

This detail shows the junction between a Passivhaus twin stud timber frame external wall and an intermediate floor constructed with Posi-Joists. The external wall shows 300mm cellulose insulation between twin studs, external and internal OSB 3 sheathing boards, airtight vapour control layer, and 50mm service zone with mineral wool insulation.

The intermediate floor includes Posi-Joists to manufacturer’s details, 22mm chipboard walking surface glued and screwed to joists, 100mm mineral wool insulation, and 15mm plasterboard and skim finish below. Airtightness is achieved by sealing the airtight vapour control layer at floor level to the wall below before floor joists are installed, then wrapping the VCL up around the floor structure and sealing to the wall above. Insulation continues to the perimeter of the joist zone with a timber blocking piece between the top chord.

See drawing notes for full information.

Features of this detail: Passivhaus, twin stud timber frame, intermediate floor, Posi-Joist, cellulose insulation, mineral wool insulation, airtightness layer, VCL, service zone, chipboard flooring, perimeter insulation, acoustic performance, fire resistance, Building Regulations Part E, Building Regulations Part B

 

£14.00 + VAT
£9.00 + VAT
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03_01 Passivhaus Twin Stud LR

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