Metal roofs can last 40-70 years, depending on the material. Traditional asphalt roofing materials have an estimated life expectancy of roughly 12-20 years.
Some metal roofs can sustain wind gusts up to 140 miles per hour, will not corrode or crack, and may be impact-resistant (depending on which metal you choose). In addition, metal roofs don’t need the periodic costly maintenance that other residential roofing materials often require. However, they should be inspected periodically to make sure no repairs are required.
Metal roofs will not spark and ignite into flames during a wildfire or lightning strike.
Metal roofs reflect solar radiant heat, which can reduce cooling costs by 10-25%.
Metal roofs not only have 25-95% recycled content, depending on the material used, but are also 100% recyclable at the end of their life as a roof. In contrast, most shingle tear-off waste ends up as part of the building-related waste stream — up to 20 billion pounds per year.
Also see our Commercial Roofing for Flat Roofs