Metal roofing is available in a wide variety of substrates, colors, textures, and profiles. Though diverse in appearance, metal roofing has many common attributes such as durability, recycled content, recyclability, fire resistance, low weight, and low life-cycle cost. With proper design, cool and quiet metal roofing systems save energy by reducing a building’s cooling and/or heating load and sound. Many metal roof systems are reflective, easily vented, and lend themselves well to insulated roof systems to help reduce heat gain into a building. Many products are also formed in ways that stop heat transfer through conduction by allowing only minimal contact between the metal and the underlying structure.