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Improved design of roof drainage systems with box gutters, overflows and downpipes
Dissertation   Open access

Improved design of roof drainage systems with box gutters, overflows and downpipes

University of the Sunshine Coast, Queensland
Doctor of Philosophy, University of the Sunshine Coast
2020
DOI:
https://doi.org/10.25907/00218
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Abstract

roof drainage box gutters hydraulic design storm water management extreme weather design rainfall uncertainty climate change rainfall spatial variability small catchments flow regimes siphonic drainage
This study evaluates the adequacy of current design guidelines for roof drainage systems with box gutters, overflows and downpipes and provides recommendations for improvements. Roof drainage systems are a crucial component of the building envelope, which protects the structure and contents from water damage. However, compared to the scope of applications in the built environment, investigations into the operational performance of roof drainage systems and their sensitivity to extreme rainfall events are relatively limited. This presentation reports the findings of a full-scale empirical test of a complete box gutter roof drainage system and is likely to be one of very few such investigations undertaken. This study is situated within the fields of hydraulics, hydrology and building regulations.

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