A Green Roof or Living Roof utilizes vegetation to cover some or all of the roof’s surface. In addition to being a beautiful, natural alternative to conventional roofing techniques, a living roof provides a variety of lifestyle, financial, and ecological benefits. A living roof can reduce both heating and cooling costs, manage rainwater runoff, and provide additional sound insulation. In addition, living roofs generally extend the life of a roof by 200-300%, and are often cheaper to repair. Ecologically, living roofs can attract beneficial insects, birds, bees and butterflies, filter pollutants from the water and air, and even sequester carbon dioxide. The U.S. Department of Energy found that implementing green roofs resulted in a 2 percent reduction in electricity consumption and 9-11% reduction in natural gas usage.