fsk foil 1.high thermal reflectivity 2.water-resistance 3.weather proofing 4.dust reduction Specification: Reflective fiberglass fabric& roofing sarking fsk foil dust reduction fire retardancy lightweight non-toxicMaterial: 7μm aluminum foil, fiber glass cloth 12*12, PE and 7μm aluminum foilApplication: it is typically installed under roof tiles when a home is being constructed to keep your home ...