1) Lower Energy Costs
2) Storm water Management
3) Reducing Urban Heat Island Effect
4) Increase  Longevity of the  Roof
5) Amenity and Aesthetics

For a facility, green roofing can increase the longevity of the roof membrane along with lowering energy costs. One of the nicest benefits is the value it can add with amenity and aesthetics. It is not only the facility that benefits from green sustainable roofing. Green roofing also contributes to the surrounding area in ways such as storm water management, reducing the urban heat island effect, and the attraction of insects and birds which can create a balance in the ecosystems of urban areas.