International Journal of Earth Sciences and Engineering

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Green roofs are vegetation installed on top of buildings to provide flow control by attenuation, storage and losses due to evapotranspiration. A green roof consists of several-layered materials to achieve the desired vegetative cover and drainage characteristics. An attempt has been made to use the different runoff and infiltration models available in the widely used hydraulic modeling software-InfoWorks CS to model runoff from green roofs during storm events and over a longer continuous simulation period. The most suitable model was then applied to test the benefits across 03 catchments in InfoWorks CS considering a range of percentage uptake of green roofs within the catchments. The benefits of green roofs implemented on a catchment level are assessed in terms of Combined Sewer Overflows (CSO) performances.

Keywords

Green Roofs, Infoworks CS, Hydraulic Modeling, Runoff, Infiltration.
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