thermal insulation facing Product Description & Application itis a light duty, Eco grade D/S foil Insulation. It is made from 1 outer layer of pure aluminum foil and 1 outer layer of metallized polyester film as well as 1 layer recycled kraft paper. These layers are bonded together with polyethylene and reinforced with 3-way fiberglass scrim. It is ideally used as sarking and insulation under roofs , in walls behind cladding or under timber floors , for residential and commercial building. Combining with glasswool or foam insulation, it is excellent as a vapor barrier for air-conditioning ducts, popes and vessels. Available Roll Width: 1.0m/1.2m/1.25m/1.30m/1.35m