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There are numerous high quality, cool metal roofing systems and profiles offering an energy efficient and Eco-friendly green roofing alternative to conventional asphalt shingle roofs. Today, homeowners can choose from a wide range of materials and systems including aluminum, galvanized and galvalume steel, zinc and copper. modern residential and light commercial metal roofing philadelphia systems are available as standing seam, batten seam, simulated Spanish tiles, metal shakes and metal shingles roof systems.