DCT-R02-1(R)
RESIDENTIAL METAL ROOF WITH CATHEDRAL CEILING BELOW RAFTERS (PIR)
Residential timber structure metal roof with a cathdral ceiling below the rafters. The rigid thermoset PIR insulation board forms a continuous air and vapour control layer at the ceiling with further ceiling insulation added above. The vapour permeable sarking, separated from the roof sheet by a drainage batten provides drainage of any moisture or condensate forming below the roof sheet. Suitable for ventilated and unventilated roofs.
Section J (NCC 2019) R-Value Calculator
ProctorPassive Intumescent Drainage Batten (DB-FR) is a high compressive strength drainage batten for roof and wall applications and is constructed from an intumescent polyolefin extrusion.
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.
