ALUMINUM ROOFING is a very light metal with a specific weight about a third that of steel. Aluminum naturally generates a protective oxide coating and is highly corrosion resistant making it excellent for such conditions as marine environments. Different types of surface treatment such as anodizing, painting [such as Kynar500 used on metal roofing] can further improve this property. It is particularly useful for applications where protection and conservation are required. Aluminum is 100 perce
nt recyclable with no downgrading of its qualities. The re-melting of aluminum requires little energy: only about 5 percent of the energy required to produce the primary metal initially is needed in the recycling process. Metal roofing has a 25% recycled content in new roofing.
The Aluminum Association
