Editorial: Building Resiliency
Limberlost Place at George Brown College Waterfront Campus, Toronto. Design by Moriyama & Teshima Architects and Acton Ostry Architects
The Intergovernmental Panel on Climate Change?s 2022 report focuses on the impacts of climate change, and the capacities of natural and human systems to adapt. Among its findings, it notes how the implementation of low-carbon practices within specific sectors?including buildings?is key to mitigation.
The report highlights strategies such as using more wood in buildings to lower emissions, the wide deployment of green roofs in urban areas to reduce extreme heat, and using passive design strategies for heating, cooling, and ventilation.
But there are also implicit trade-offs: for instance, enhancing space conditioning in buildings can tame the health risks of extreme heat, but comes with a carbon cost. Tightly sealed buildings reduce energy consumption, but may also lead to moisture build-up in envelopes. Increased insulation without shading and ventilation can come with a lowered ability to benefit from nighttime cooling. And while policy changes can be effective, they can exacerbate inequities. ?Changes to design standards can scale quickly and widely, but retrofit of existing buildings is expensive, so care must be taken to avoid potential negative impacts on social equity,? write the report?s authors. Altogether, ?building today for resilience and lower emissions is far easier than retrofitting tomorrow,? notes the report. Some $90 tr...
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canadian architect
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https://www.canadianarchitect.com/
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