Benefits of Green Roofs

Oct. 18, 2010

Green roofs provide overlooked benefits.

Green roofs, like the massive 27,750 square foot, EPA Recovery Act funded, green roof located atop the World Wildlife Fund headquarters, offer benefits in a variety of areas.  Along with providing shade, removing heat from the air, and reducing temperatures in ways a conventional rooftop can’t, green roofs come with other excellent benefits:

  • Reduced air pollution and greenhouse gas: Green roofs can lower demands on air conditioning, decreasing production of associated pollutants. The vegetation can remove air pollutants through dry deposition and carbon sequestration and storage.
  • Improved health and comfort:  By reducing heat transfers through the building roof, green roofs can improve indoor comfort and lower heat stress.
  • Green roofs are instrumental in handling and reducing stormwater run-off.
  • Reduced energy use:  Green roofs reduce the need for energy associated with cooling and heating by acting as an insulator.

Learn more about green roof benefits and the Recovery Act at www.epa.gov/recovery.

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