Steel, aluminium, copper and alloy are some of the different types of metal roofing materials. Every material has a property that affects its appearance, price and durability.
Steel is sturdy and heavy, and most people use it as a roofing material. To protect it from corrosion and rust, manufacturers use different durable finishes and coatings. For example, some manufacturers coat steel with zinc to protect it from corrosion. A baked-on acrylic top coating also helps protect steel from corrosion.
Aluminium is lightweight and popular in residential metal roofing. It does not rust but must be coated or painted to improve its appearance. The coatings used on aluminium are the same as those used on steel. It is a soft metal, and it mars and dents easily.
Copper is another type of metal roofing material. Copper does not rust or scratch and has been in use for many centuries. The metal is soft and weathers naturally. However, it costs more than some of the other metal roofing materials.
Alloy is a durable and strong roofing material. It weathers naturally, and its price is on the higher end of metal roofing materials. It shares many of the same characteristics as stainless steel.