The screws of the profiled panel of color steel tile are half hidden in the wave groove, and each wall can form vertical shadow with different depth under natural light, and the appearance is beautiful. It adopts wavy arc with modern artistic feeling. It has high mechanical properties and obvious effect against typhoon.Beautiful appearance, color can be arbitrarily selected according to the design image, decoration effect range is wide. Installation is quick and easy. The problem of water leakage due to vertical lap joint is reasonably solved by installation from bottom to top. It can be used on site composite wall surface to prevent rain and overflow effectively.