roof drain - An Overview
7. Consider using reinforcing mesh or steel bars to give the concrete excess energy and sturdiness from significant rain or snow loads.Those that put in new, thicker roof membranes may perhaps end up blocking their scuppers. In that situation, scuppers must be moved up the wall or replaced with greater scuppers.ซื้à¸à¸§à¸±à¸™à¸™à¸µà¹‰à¸ªà¹ˆà