Transcription of MAY 2011 - General Services Administration
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The Benefits and Challenges of Green Roofs on Public and commercial BuildingsA Report of the United States General Services AdministrationMAY 2011 Front cover: Image of the green roof on the United States Department of Transportation Headquarters GSA GREEN ROOF BENEFITS AND CHALLENGESTABLE OF CONTENTSCONTENTSEXECUTIVE Purpose of Study .. Methodology .. Background to Green Roofs .. Cost .. Scope of Report .. BENEFITS .. Stormwater Management .. Biodiversity and Habitat .. Urban Heat Island .. Energy .. Urban Agriculture .. Acoustics .. Air Quality .. Aesthetics and Quality of Life .. Job Generation and Economic Development .. Roof Longevity .. COST BENEFIT ANALYSIS ..673 .1 P u r p o s e .. Methodology .. Assumptions .. Results .. CHALLENGES TO GREEN ROOF Siting and Design .. Installation and Construction .. Maintenance and Operation ..83 GSA GREEN ROOF BENEFITS AND CHALLENGESTABLE OF CONTENTSGSA GREEN ROOF BENEFITS AND CHALLENGESTABLE OF RESEARCH AND DATA NEEDS.
commercial and public buildings include: • Improved water quality due to reduced stormwater runoff and fewer overflows of combined sanitary and stormwater sewage systems • Increased habitat promoting biodiversity • Lower temperatures for building roofs and the air above them in most climates • Reduced energy consumption in some climates •
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