What is terne metal roofing made from?

Terne metal roofing is composed of copper-bearing steel that has been dipped in a mixture of lead and tin. This unique composition provides several benefits, including excellent corrosion resistance and a durable finish that can withstand harsh environmental conditions. The lead and tin coating allows the steel to be more malleable and easy to work with while enhancing its protective qualities. Additionally, terne metal develops a natural patina over time, which not only contributes to its aesthetic appeal but also further aids in its durability. This roofing method has been utilized for various building types due to its strength and longevity.