Green Roofs Proposal for the City of Roanoke

The actual cost of installing a green roof on a preexisting structure ranges between $15 to $20 for a 2.5 inch green roof, which reduces rainwater runoff up to 67% and energy up to 25%. Therefore, it was determined that a green roof in the City of Roanoke would cost the city about $17 per square foot. ................
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