PHT45 – Passivhaus Twin Stud Timber Frame Pitched Roof Eaves

Price range: £9.00 through £14.00 + VAT

This detail illustrates the eaves junction between a Passivhaus twin stud timber frame external wall and a cold pitched roof. The external wall shows 300mm cellulose insulation between twin studs, and the roof shows 500mm mineral wool insulation at ceiling level.

The roof construction includes air permeable clay roof tiles on battens, low vapour resistance underlay, bobtail truss roof structure designed to maintain insulation depth at the wall junction, vapour control layer, 50mm service void between battens, and plasterboard with plaster skim finish.

Over-fascia ventilator with underlay support maintains minimum 25mm air gap with rafter ventilator. High level ventilation gap with insect mesh is provided, and airtightness tapes ensure continuity at the perimeter of the ceiling. Cross-layering of insulation avoids vertical gaps.

See drawing notes for full information.

Features of this detail: Passivhaus, twin stud timber frame, pitched roof, cold roof, eaves junction, bobtail truss, cellulose insulation, mineral wool insulation, clay tiles, vapour control layer, ventilated roof, airtightness layer, service void, over-fascia ventilator, low U-value

 

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

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