The characteristics of FSG waterproof and heat-insulating plate are light in volumetric weight, high in water resistance, fine in strength, low in heating transmission coefficient and convenient in construction, ranked the first among similar products. It is widely used in roofs, walls, underg-round structures and various cold preservation projects. Perlite insulation board (FSG…) is the expanded bulk material as aggregate by adding waterproof agents and binders to compounding,screening, compression molding, drying processes, ect,to be waterproof insulation board at last.This kind of product effectively solves a variety of architectural roof insulation, thermal insulation and waterproof functions of the technical problems, saving a great deal of construction and environmental protection. Features: Lightweight insulation and fire performance, Dustproof, Moistureproof, no deformation modified, non-rotting and mould, good water-proof properties of non-toxic and tasteless, and water-repellent 98% , so to be construction safety, roof and wall paste made by natural ore as raw material.This have a good environmental protection.