ASTM D4637-2021 Standard Specification for EPDM Rubber Sheeting for Single Layer Roofing
รัศมี 1.1 This specification covers flexible panels made of ethylene-propylene diene rubber (EPDM) for single-layer roof membranes exposed to weather. The test and performance limits used to characterize the sheet are values that ensure the lowest quality for the intended use. The sheet may be unreinforced, fabric or thin pine reinforced, or a vulcanized rubber sheet backed by fabric. 1.2 เกณฑ์การออกแบบระบบหลังคาหน้างาน, เช่นการทนไฟ, site joint strength, material compatibility and heave resistance, are factors that [...]