what are metal roofs made of?
<answer> Metals roofs are made up of galvanized steel, stainless steel, aluminum, copper, tin. <context> There are many different types of metal roofing materials, but the most popular today are galvanized steel (and versions like Galvalume), stainless steel, aluminum and copper. Galvanized steel is the most common metal roofing material. It’s heavier and sturdier than aluminum and it can be coated to prevent corrosion.