DCT-R02-3(R)
RESIDENTIAL METAL ROOF WITH CATHEDRAL CEILING BELOW RAFTERS AND MEMBRANE BELOW BATTENS (SMARTVAP)
Residential timber structure metal roof with a cathedral ceiling below the rafters. The SmartVap intelligent air barrier membrane at the ceiling forms a continuous air and vapour control layer with ceiling insulation added above. The vapour permeable sarking is draped over the rafters, separated from the roof sheet by the roof battens providing for drainage of any moisture or condensate forming below the roof sheet. Suitable for ventilated and unventilated roofs.
Section J (NCC 2019) R-Value Calculator
ProctorWrap High Tensile-Roof (HT-S) is a medium weight highly durable medium duty vapour permeable roof underlay for use in tiled, slate and metal roof applications. ProctorWrap HTS-IT is supplied with double integrated tape.
DCT PIR Silver insulation is a general application thermoset PIR insulation board with two low emissivity foil facings, suited for use in non-exposed floor, roof, wall and ceiling applications in residential and commercial buildings.
