There are several different kinds of metal that are used as roofing materials, and it’s important to know about the unique characteristics and differences between them.
Tin roofing has quite a long history in the US. Tin smith craftsmen used to do a roaring trade in tin roofs for residential homes for many, many years although they are far less common now. Some are still installed, but tin is nowhere near as durable as other kinds of metal, steel for instance, and needs to be coated regularly in order to preserve their condition and stop them from corroding.
Zinc roofs are not that much different from copper roofs overall. Both are expensive and both are extremely long lasting. However, copper is widely preferred as it is more aesthetically pleasing.
The most common kind of metal roof is made from steel. Being one of the most well developed metal industries, steel is a great choice as it offers strength and flexibility, it’s affordable and it is good for any kind of building be it residential, industrial or commercial. Steel roofs are usually made using G galvanized steel, with galvalume steel being used for the sheet metal coils as it’s of a higher quality. Although other (more expensive) kinds of stainless steel are sometimes used on high end developments like commercial buildings, more often than not galvanized steel is the best choice.
The last common metal roofing material is iron. Iron roofs are not common at all, and offer much the same qualities as steel roofs do.