GL Corrugated Roofing Sheets are galvalume-coated steel sheets widely used for roofing and cladding applications in industrial and commercial structures. They are manufactured with a protective aluminium–zinc alloy coating that provides superior corrosion resistance and longer service life compared to conventional galvanized sheets. These sheets are produced in various thicknesses, widths, and lengths with a corrugated profile for strength and rigidity, and are identified by their dimensions and coating specification, with weight based on size and thickness.