sheet . metal zinc roof sheet colorbond galvanized corrugated sheets. 14 frame the inside. we ran large seams of clear silicone caulk in all of the inside corners and where panels overlapped we also used . insulated corrugated metal roofing sheets 72 with insulated corrugated metal roofing sheets. grades of aluminium and stainless steel sheet metal – cutlery. find this pin and more on lindsey roofing and sheet metal columbus mississippi by marilynslindsey.