Reduce Cooling, Heating Costs & Improve Air Quality With a Green Roof A green roof is a roof of a building that is partially or completely covered with vegetation and soil, or a growing medium, planted over a waterproofing membrane. Stormwater Retention Stormwater management can be met with a green roof. The growing medium and vegetation absorb rainwater. Decreased stress on sewer systems at peak flow times. Temperature Control Reduced cooling and heating costs. Protects the roof membranes from harmful UV radiation and heat. Reduces the size of the HVAC unit necessary. Reduces the urban heat island effect. Improve Air Quality Reduce noise pollution for the occupants of commercial buildings. Through the process of photosynthesis, animals and humans are supplied with oxygen. A green roof will absorb heat and filter the air moving across it. Public Benefits Increase local support for new development. Aesthetically pleasing to tenants above buildings with green roofs. Access to the outdoors can increase productivity and morale. Decreased need for health care services due to the benefits of nature and vegetation. Increase public perception of your corporation.