... 3.Light weight 4.Easy and fast for installation Coloured Steel Roof Tile Specificationsroof tile, beautilful color, easy installation, long life time, popular ... width of 855mm, wffective utilzation ratio up to 85.5%,wave peak of 55mm, normally used for roofing system of ... lapping seam can be reduced. 3.Traditional simple connection way,wave peak connection, connecting with member bar via self-tapping ...