Stone coated steel is a combination of aluminum and steel molded to give the appearance of a traditional roof. Stone coated steel roofing options include shingles, tiles, shakes and even slate. The benefits of stone coated steel versus traditional asphalt shingles include durability, longevity and energy efficiency. The average life span of a stone coated steel roof is 2-3 times that of a traditional asphalt roof. This material is the perfect solution for the extreme weather variability we experience in the Rochester, NY area.