Basically, as a roofing, steel, copper nickel — titanium and aluminum sheets are used. Steel coating is made from a sheet of steel, which is covered with a layer of zinc or alloy of zinc and aluminum. Steel sheets are covered with these protective suspensions at the stage of manufacturing sheets on an industrial scale. Before heat, how to cover steel with a zinc coating, the base is passing and necessarily primed. After that, laco is applied to the front side of the sheet — colorful coatings, which mainly performs a decorative and visually polymer function. By clicking on the following link you can buy roller roof materials.