* The Zinc coating on Galvanized Corrugated Roofing Sheets serves as a barrier between the steel and the environment protecting the underlying steel sheet. Galvanic protection comes into play when two dissimilar metals are in contact and coupled with water and oxygen. In this case, zinc corrodes preferentially to guard the steel beneath. Galvanized Corrugated Roofing Sheets prevents corrosion of the steel at areas not covered with zinc too which inhibits the spread of corrosion from cut-edges and drill holes. Uses: Barricading, Cladding, Facades, Roofing Advantages: Economical, Durable, Long Life Thickness: 0.15 mm to 0.8 mm Width: 762 mm - 1200 mm Features: Ductile, Consistent Mechanical Properties, Close Dimensional Tolerance, Superior Surface Finish.