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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:	Refereed Conference Paper
Keywords:	hygrothermal analysis, mould growth model, mould, condensation, health
Research Division:	Built Environment and Design
Research Group:	Architecture
Research Field:	Architectural science and technology
Objective Division:	Energy
Objective Group:	Energy efficiency
Objective Field:	Residential energy efficiency
UTAS Author:	Nath, S (Mrs Shruti Nath)
UTAS Author:	Dewsbury, M (Dr Mark Dewsbury)
UTAS Author:	Watson, P (Dr Phillipa Watson)
UTAS Author:	Lovell, H (Professor Heather Lovell)
ID Code:	142199
Year Published:	2020
Deposited By:	Architecture and Design
Deposited On:	2020-12-22
Last Modified:	2021-01-04
Downloads:	0