You are here:
Green Roofs for Stormwater Management
Berghage, R. AND T. OCONNOR. Green Roofs for Stormwater Management. Presented at EPA Science Forum, Washington, DC, May 20 - 22, 2008.
To share information
This project evaluated green roofs as a stormwater management tool. Results indicate that the green roofs are capable of removing 40% of the annual rainfall volume from a roof through retention and evapotranspiration. Rainfall not retained by green roofs is detained, effectively increasing the time to peak, and slowing peak flows for a watershed. Green roof runoff does contain concentration of some nutrients and other parameters, but values are in line with other planted systems.
Record Details:Record Type: DOCUMENT (PRESENTATION/POSTER)
Organization:U.S. ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
NATIONAL RISK MANAGEMENT RESEARCH LABORATORY
WATER SUPPLY AND WATER RESOURCES DIVISION
URBAN WATERSHED MANAGEMENT BRANCH