With interlocked panels, metal roofing is resistant to rain and snow, which is vital in a climate like Minnesota’s. Metal roofs are naturally fire-resistant as well and are resistant to combustion. They will not rust, rot, split, or curl. PermaLock aluminum shingles are warranted to withstand 165 mph winds. They are classified as a Class IV hail resistant roof, designated for only the most durable types of roofing on the market.