ASA provides the sheets excellent weather resistance and color stability , long life span up to 25--40 years and lasting color . Decorative ability, bring the roof fantastic wavy look and multi-dimensional effect. Good load-carrying ability and anti-impact resistance , the test show no crack happened after 1 kg steel ball drop from 3 meters on sheet. Excellent corrosion resistance , free from corrosion of various chemical substances such as acid ,alkali and salt . Heat insulation , the coefficient of heat conductivity is 0.325W/M.K, which is 1/310 of clay tile and 1/5 of cement tile , it can reduce cooling costs in your home or office . Good fireproofing performance , according to GB8624-2006 fireproofinglass B. excellent waterproof performance , no water absorb and seep. Recycled and environment friendly, free from asbestos and any radioactive elements Easy to install , 960mm effective width and customized length ensure fast installation . Self-cleaning performance , it doesnâ??t absorb dust and very easy clean by rain.