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A bio-hygrothermal mould growth analysis of typical Australian residential wall systems
conference contribution
posted on 2023-05-23, 14:52 authored by Shruti Nath, Mark DewsburyMark Dewsbury, Phillipa WatsonPhillipa Watson, Heather LovellHeather Lovell, Kunzel, HSince 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.
History
Publication title
Proceedings of the 54th International Conference of the Architectural Science Association (ANZAScA)Editors
A Ghaffarianhoseini et alPagination
1-11ISBN
9780992383572Department/School
School of Architecture and DesignPublisher
ANZAScAPlace of publication
New ZealandEvent title
The 54th International Conference of the Architectural Science Association (ANZAScA)Event Venue
Auckland, New ZealandDate of Event (Start Date)
2020-11-26Date of Event (End Date)
2020-11-27Rights statement
Copyright unknownRepository Status
- Restricted