Expanded Perlite Insulation Board, also known as FSG Waterproof Insulation Board, is a thermal and waterproof insulation board made by using water-repellent expanded perlite as the aggregate, mixed with waterproofing and adhesive agents, and then processed through mixing, screening, pressure forming, and drying. The FSG waterproof insulation board effectively addresses the technical challenge of integrating thermal insulation, heat insulation, and waterproofing in building roofs, saving a significant amount of construction and maintenance costs. Features: The expanded perlite insulation board boasts light weight, low thermal conductivity, good stability, high strength, and ease of installation. Particularly, it has excellent water-repellent properties, with a water-repellency rate exceeding 98%. It is widely used in the waterproofing, thermal insulation, and heat insulation of roofs, walls, cold storage, grain silos, and basements in various industrial and residential buildings, as well as in various cold storage projects.