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Abstract

Since 2014, Australian scholars and design and construction professionals have raised concerns about the increased presence of mould and condensation within new stand-alone and multi-residential buildings. Several studies have identified significant material decay and mould growth within external wall systems due to long-term moisture accumulation. This paper focusses on moisture and mould growth in buildings by providing an in-depth analysis of the most common external wall system for Australian residential buildings (cavity brick veneer). This wall's moisture accumulation over a ten-year period was simulated using multi-year transient hygrothermal software. Transient hygrothermal simulation is novel within the Australian research and regulatory context. Mould growth was simulated and analysed using a post-processing mould growth software. To assist in informing regulatory development, simulations were completed for three temperate Australian climate zones. The modelled wall system applied typical and regulation-compliant building material configurations for pre-2003, 2004, 2007 and 2010. The results of the modelled wall system will be used to inform national building regulations in Australia. A key component of this paper includes the evaluation of internationally accepted methods for mould growth simulation.

Item Type:	Conference or Workshop Item (Paper)
Authors/Creators:	Nath, S and Dewsbury, M and Watson, P and Lovell, H and Kunzel, H
Keywords:	hygrothermal analysis, mould growth model, mould, condensation, health
Journal or Publication Title:	Proceedings of the 54th International Conference of the Architectural Science Association (ANZAScA)
Publisher:	ANZAScA
Copyright Information:	Copyright unknown
Related URLs:	Google Scholar: Dewsbury, M UTAS Profile: Dewsbury, M Google Scholar: Watson, P UTAS Profile: Watson, P Google Scholar: Lovell, H UTAS Profile: Lovell, H
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