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Green walls taking root in green building design

The next big thing in green building design might be to turn an existing idea on its side. PNC Financial Services Group Inc. recently installed a green wall the size of two tennis courts on one side of its headquarters.

Like green roofs – their perpendicular counterparts – green walls are covered in vegetation and provide the benefits of natural insulation and removal of air pollutants. PNC, which provides banking and wealth management services, estimates it will be 25 percent cooler behind the wall than the ambient summer temperatures.

Green walls also can be visually engaging.

By DAN NEPHIN; Associated Press Writer

Full Story: http://www.thenewstribune.com/business/story/913326.html

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