How much longer will a Classic Metal Roof last in comparison to temporary roofing such as asphalt or wood shingles?

The Classic Metal Roof by Metal Roofing Systems is a permanent roof that will last more than 100 years. Classic Metal Roofing Systems carry meaningful, non-prorated, long-term warranties on the base metal, their high-quality coatings, and the installation. Your roof is covered by both the installer and the manufacturer. With temporary roofing products, your roof starts to deteriorate the moment it is installed. According to the asphalt roofing industry, the average lifespan of traditional shingles is only 12 to 17 years! Heavily pro-rated warranties on these products bring little or no value to property owners. Wood shingles also deteriorate quickly.  more