Durability is a key factor, it requires fewer repairs, it lasts more than 40 years, sheet metal is light weight, and is readily recyclable. Aluminum and copper roofing products are available with over 95% recycled content. Most metals can be recycled over and over without losing any valuable properties. Recycling is very efficient.
Design flexibility: Some Steel roofing products can be installed over open framing, or on a solid substrate. The lowest end metal roofing (thin gauge with acrylic or polyester paints) commonly called AG (agricultural) or Utility panels will last 20–30 years which is roughly 2 times the lifespan of an average asphalt roof. Most metal roofing products today come with warranties from 25 to 50 years.
Design flexibility: Some Steel roofing products can be installed over open framing, or on a solid substrate. The lowest end metal roofing (thin gauge with acrylic or polyester paints) commonly called AG (agricultural) or Utility panels will last 20–30 years which is roughly 2 times the lifespan of an average asphalt roof. Most metal roofing products today come with warranties from 25 to 50 years.