10/7/2013

A 12,000-square-foot green roof has been installed -- finally -- on Howlett Hall at Ohio State University. The hall, built 46 years ago, was designed to have a green roof, but there wasn't enough money. The new rooftop garden is expected to capture about 191,000 gallons of stormwater runoff each year, and save about $10,000 on annual heating and cooling costs.

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