Heatwaves have a mounted interest in the last decade due to their negative impacts on infrastructure, the ecosystem and public health. Population exposure to heat stress is substantially influenced by the resilience of the built environment as people spend the majority of their time indoors. Retrofitting the existing building stock could profoundly improve heatwave resilience, however, the current knowledge of the population’s heatwave-resilient retrofitting willingness is limited. An online survey about population perception of, adaptation to and retrofitting against heatwaves was conducted with a representative sample from the Adelaide metropolitan region in March 2015. The survey results about the retrofitting relevant questions presented in this paper suggest that the perceived financial limitations and missing tenant/landlord incentives represent the key barriers to domestic retrofitting.
Beyond air-conditioning, the improvement of shadings was the most prevalent retrofitting measure. The number of known and applied retrofitting measures, nevertheless, were limited. Solutions, such as taking advantage of increased garden vegetation or changing the roof colour were underrepresented. Special attention should be paid to older population since they are not only more vulnerable to heatwaves but also less willing to retrofit their homes.
The Architectural Science Association (ANZAScA) 2015
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Heatwaves have been subject to significant attention in Australia and globally due to their negative impacts on the ecosystem, infrastructure, human health and social life. Measures to increase resilience to heatwaves, however, are mostly isolated in different disciplines. This paper proposes a framework integrating urban and infrastructure planning, building design, public health and social research, to comprehensively assess heat stress resilience.
The report was undertaken as part of a PhD research, funded by the CRC for Low Carbon Living Ltd. supported by the Cooperative Research Centres program, an Australian Government initiative and a research student scholarship granted from the Australian Building Codes Board.
Climate change is leading to an increased frequency and severity of heat waves. Spells of several consecutive days of unusually high temperatures have led to increased mortality rates for the more vulnerable in the community. The problem is compounded by the escalating energy costs and increasing peak electrical demand as people become more reliant on air conditioning. Domestic air conditioning is the primary determinant of peak power demand which has been a major driver of higher electricity costs.