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Learn how John Ball Zoo in Grand Rapids, Michigan uses green roofs and living walls to preserve and restore habitat. By adding green roofs and living walls to their facility, John Ball Zoo ...
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http://www.enviro-roofrestoration.com -- Our Website "Enviro Green - Roof Restoration and Vancouver Roof Repair" Enviro-Green specializes in Cedar Roof Restoration, Cedar Roof Repairs, Ced...