Green roofs offer priceless benefits

10/4/2009 | CBS News

Green roofs lower the surface temperature of buildings in the summer, keep a structure's exterior warm in the winter, prevent storm-water runoff and help lower utility costs. Observers note that the utility savings vary with the type and size of roof. However, experts also note that green roofs offer other intangible benefits, such as the ability to educate children about how food is grown.

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