Timber Frame Warm Flat Roof Detail | RTF-18

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Timber frame warm flat roof detail with waterproofing and insulation

RTF-18 – Warm Flat Roof Detail

£5.99

Use this timber frame warm flat roof detail to coordinate waterproofing, insulation, vapour control, roof falls, perimeter upstands, drainage and airtightness at 1:10.



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This timber frame warm flat roof detail shows the waterproof covering, insulation, vapour control layer, deck and supporting joists. It shows the waterproof covering, rigid insulation, vapour control layer, roof deck and supporting joists. The detail also addresses roof falls, perimeter upstands, drainage and airtightness continuity. Insulation continues across the roof structure to reduce thermal bridging at the wall junction. This drawing is suitable for Building Regulations submissions, detailed construction packages and specialist roofing coordination.

For a closely related junction, see our RTF-12 warm pitched roof eaves detail. Approved Document C provides official guidance on resistance to moisture in floors, walls and roofs.

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