Column: Green roofs offer a variety of benefits, layers

01/15/2009 | Huffington Post, The

Green roofs can help cut down on energy costs by reducing the amount of heat and cold that enters a building, according to these authors. They also note that green roofs also provide environmental benefits because they retain storm water and clean the air of pollutants. In this piece, they explain the basic components of green roofs, including the membrane, the root-protection barrier and the drainage layer.

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