Energy Savings

Green roof technology helps lower the cooling costs of a building by decreasing the temperature of the roof and the air-intake around ac units.

A 2003 study by the National Research Council of Canada found that green roofs can reduce summer energy demand by up to 75% in a single story building.

The green roof on the Ford Truck Plant in Dearborn, Michigan reduced the building's annual energy consumption by 7%. (Earth Pledge, 2005)

Chicago City Hall installed a 22,000 ft2 semi-intensive green roof and updated their HVAC system to reduce their monthly energy bill by $10,000. (Nolan, 2009)

The GAP, Inc. Headquarters in San Bruno, CA installed a 69,000 ft2 extensive green roof and reduced their annual energy consumption by an estimated $25,000, an 11 year ROI. (Cities, 2006)