... PVC resin roof tile 1,anti-impact 2,heat-insulation 3,anti-corrosion 4,self-cleaning floworld series PVC resin roof tilePVC resin ... fifth of 10mm thickness cement tile, 1/2000of color steel tile. Its great heat insulation in roof system without any insulation materials together ... up to 95%, very good for housing. UPVC heat insulation roof tile is easy to drill, saw and shape, available proportion is ...