Identification

• A green roof is a process of roofing that integrates waterproofing, drainage and root-repellent systems, filters cloths, a growing medium, and the plants.
  
  

Benefits

• Green roofs are more aesthetically pleasing than modern roofs and can be used for outdoor recreation or food production. The Fairmont Waterfront Hotel in Vancouver, British Columbia, saves an estimated $30,000 on food costs by growing herb, flowers and vegetables on its green roof.
  
  

Time Frame

• It is estimated a quality-constructed green roof will last twice as long as a conventional roof by protecting the roof membrane.
  
  

Effects

• Green roofs can help lower electric bills in warm climates by keeping the home cooler. Research by Environment Canada found that installing a green roof could decrease summer cooling needs by 25 percent.
  
  

Considerations

• There are many potential government incentives available for building green roofs, from reduced storm water/waste water charges from your utility to grants for energy-efficient and green roof construction.