Green Roof and Permeable Paving Retrofit to Mitigate Pluvial Flooding

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Sustainable Surface Water Management: A Handbook for SUDS, 2016, pp. 245 - 258
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© 2017 John Wiley & Sons, Ltd. All rights reserved. With increasing urbanisation, predicted climate change and population growth, the potential for intense rainfall events to cause flood damage and disruption within urban settlements including central business districts (CBDs) grows. This chapter uses a recent study within the city of Melbourne as an example to explore the potential of retrofitted green roofs and permeable paving to attenuate stormwater damage in the context of CBDs. Retrofit of permeable paving is an important Sustainable Urban Drainage systems (SuDS) approach within CBDs. The potential to retrofit existing structures, as well as the type of green roof considered suitable, depends on factors such as roof type, size and slope and the load-bearing capacity of the structural form. Large Australian commercial buildings tend to have roofs of concrete construction, whereas smaller commercial buildings may have timber roof structures covered with profiled m.
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