Evaluating the Feasibility of Implementing a Green Roof Retrofit on Pitched Residential Roofs

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Date
2015
Authors
Borchers, Benjamin
Chow, Connie
Doelp, Matthew
Ent, Lawrence
Hakes, Raquel
Heo, Chung
Hunsley, Kenneth
Sinha, Sree
Swaim, Courtney
Whittaker, Anna
Advisor
Ristvey, Andrew
Citation
Abstract
Green roofs are one solution to stormwater runoff which is a major environmental problem. However, the majority of green roofs are primarily implemented on flat roofed commercial buildings and not residential homes with sloped roofs. Team SO GREEN designed a light-weight green roof system retrofit for residential homes. Between June and November 2014, green roof performance data was collected and compared between the designed sloped roofs and a non-sloped control. The sloped design performed well and one test slope was improved with a recirculating irrigation system. An economic analysis was made and a focus group determined preliminary consumer interest, aesthetic preferences, and barriers. This study enriches the body of knowledge regarding bringing green roof systems to the residential home market.
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