For nearly two centuries, painted steel sheets have been widely used in the construction industry around the world. Due to its excellent corrosion resistance, it has become the product of choice for a wide range of construction uses, especially roofs and walls. Coated steel is a unique building material. It combines the strength of steel with the excellent corrosion protection of a zinc/aluminum alloy coating. It can be stamped, roll formed and joined into countless structural and decorative building products.