1) Long life, anti-aging, roofing materials can be used more than 20 years, up to 50 years underground.
2) High tensile strength, elongation rate, heat treatment of small size changes.
3) Low temperature flexibility, and adapt to environmental temperature change is good.
4) Resistance to root penetration, and can be made of green roof.
5) Good resistance to perforation.
6) Construction is convenient, reliable and environmentally friendly solid welding pollution.
7) Strong resistance to chemical corrosion, for special occasions.
8) Has good plasticity, convenient and quick corner detail treatment.
9) Easy maintenance and low cost.
10) After 2000 hours of artificial climate of the verification