Products Properties : 1.With excellent ageing-resistant performance, it will not become brittle due to transfer of plasticizer 2.No plasticiser,do not release toxic gases during welding .Environmentally-sound, chloride-free and no pollution 3.High breaking strength and tear strength, anti-impact and perforation resistance 4.Good flexibility at low temperature, and no bending and crack at -40â?? 5. Good root resistance 6. FM certificate approved. 7. Good resistance to chemical attack; resistance to the corrosion of acid, alkali, salt, animal and vegetable oil , and resistance to alga, microbial growth. 8.white color, smooth surface, high reflectance, better energy saving effect. Specification &Classification Size: 2m (width)*20m (length) Thickness: 1.2mm; 1.5mm; 2.0mm Type: Homogeneous, Reinforced, fleece back,also we can make self adhesive style Color: white, Grey or customized Certificate: ISO9001/14001,FM Certificate , Root Resistance Certificate Product Application Convention centers , exhibition halls ,stadiums , library , airport terminals , industrial plants,warehouse , logistics and other buildingâ??s metal roofs , exposed concrete roofs and green roofs.