While considering the commercial roofing, metal roofs cannot be overlooked. This is attractive and versatile at the same time this is recyclable. Compared to asphalt shingles, metal roofs last more years. This is energy efficient and lowers your cooling costs in summer. It can resist cracks, erosion and shrinking – all these qualities make it a good sustainable roofing option. As metal roofs can be recycled it is one of the most environment-friendly choice you can make for your roof.