A roofing coil lives outdoors for decades, so the coating weight and the surface condition at the moment of profiling decide how the finished sheet performs. This roofing galvanized steel coil carries a Z180 zinc coating on a DX51D base, is supplied oiled to protect the surface during storage and transport, and comes in widths from 600 mm to 1250 mm matched to standard corrugated and trapezoidal profiles. Thickness runs from 0.3 mm to 1.0 mm, the range used for single skin
