DCT-R08-1
VENTILATED STANDING SEAM METAL ROOF INTERNALLY INSULATED (PIR)
A “cold roof” design continuously ventilated from ridge to eaves below the roof sheathing board with a rigid thermoset DCT PIR insulation board forming a continuous air and vapour control layer at the ceiling with further ceiling insulation added between the rafters. The ProctorGeo HC9 drainage mat installed directly below the standing seam roofing, and above the self-adhered vapour permeable Wraptite SA sarking, provides for drainage and acoustic attenuation of rain noise.
Section J (NCC 2019) R-Value Calculator
ProctorGeo HC9 Drainage Spacer Mat is a three dimensional shaped mesh of UV stabilized polypropylene monofilaments, tangled and fused together
ProctorPassive Wraptite Self Adhesive (SA) is a light duty vapour permeable membrane for wall and metal roof application functioning as water and air barrier in one innovative vapour permeable self-adhering product.
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.
