Journal article

Green roof substrate physical properties differ between standard laboratory tests due to differences in compaction

Richard Conn, Joerg Werdin, John P Rayner, Claire Farrell

Journal of Environmental Management | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD | Published : 2020

Abstract

Green roofs are expanding internationally due to the well documented benefits they provide for buildings and cities. This requires transferable knowledge of the technological aspects influencing green roof design, particularly substrate properties. However, this is made difficult due to differences in substrate testing methods referred to in green roof guidelines and standards. Therefore, we tested a green roof substrate using laboratory-based methods from European (FLL), North American (ASTM) and Australian (AS) green roof guidelines and standards to determine how these methods vary in characterising substrate physical properties (bulk density, water permeability and water holding capacity ..

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Grants

Awarded by Australian Research Council - Melbourne Water


Funding Acknowledgements

We thank Nick Osborne for technical assistance with setting up the testing apparatus. We also thank Dr Chris Szota for help with data visualisation. This research was funded by Australian Research Council Linkage Grant LP130100731, supported by Melbourne Water and the Inner Melbourne Action Plan.