Verified by manufacturer over a year ago
BRANZ Appraised
Certificate type
Synthetic building underlay for use under roof claddings.
Suitable application as an underlay for roof claddings on buildings.
Fastwrap Flamespec HW Roof underlay is a synthetic building underlay for use under roof claddings. The underlay consists of a micro-porous water resistant film laminated to two layers of non-woven spun-bonded polyolefin. Fastwrap HW roof underlay is coloured grey with writing on the top face and white on the bottom face. Some of its significant features include:
Uniclass | |
NATSPEC National Classification System | 0471 Thermal Insulation and Pliable Membranes |
SpeedSpec | 07201 Envelope Airtightness 07311 Slate Roofing 07320 Tile Roofing 07462 Cladding External Walls 07610 Roofing and Roof Plumbing |
SpecPack | 07310 Slate Roofing 07600 Metal Roofing, Siding and Roof Plumbing 07480 Terracotta Facade System 07320 Tile Roofing |
Standards | To AS/NZS 4200.1. |
Flammability | Pass. |