Thursday, October 4, 2007

Green Roof


By landscaping your roof you can insulate your house, purify rainwater, cool the air, generate oxygen, restore habitat for native critters, and double the lifetime of the roof. If a sufficient total acreage of roofs is planted in a city, the urban heat-island effect of a city center can be mitigated.

Intensive green roofs are installed on commercial buildings and have a soil depth of one foot or more. Extensive green roofs for residential buildings landscape soil that is only 1 to 5 inches deep. Another

According to an article in San Diego Magazine , carefully selecting native plants can yield a roof that is lightweight, hardy, drought-tolerant, and shallow. San Diego-based Building Green Futures is featured in the article. Chicago's City Hall has been green since 2001.

More information is available at www.greenroofs.com and www.greenroofs.org.

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