Counting straw : the capacity of New Zealand's grain growing sector to supply straw for construction
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Authors
Hall, Margot
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Grantor
Date
2019-12
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Type
Conference Contribution - Paper in Published Proceedings
Ngā Upoko Tukutuku (Māori subject headings)
Keyword
New Zealand
straw bale houses
prefabrication
greenhouse gas (GHG) emissions
domestic architecture
supply chain management
building materials
KiwiBuild
forecasts
straw bale houses
prefabrication
greenhouse gas (GHG) emissions
domestic architecture
supply chain management
building materials
KiwiBuild
forecasts
ANZSRC Field of Research Code (2020)
Citation
Hall, Min. (2019). Counting straw:the capacity of New Zealand's grain growing sector to supply straw for construction. In Avlokita Agrawal and Rajat Gupta (Ed.), Revisiting the Role of Architecture for Surviving Development, [53rd International Conference of the Architectural Science Association (ANZAScA)] (pp. 1-10).
Abstract
The New Zealand Government has made a commitment to build 100,000 new dwellings over the next 10 years under its Kiwibuild programme. It has also made a commitment, under the Paris Accord, to reduce greenhouse gas (GHG) emissions to 30 percent below 2005 levels by 2030. The embodied CO2 emissions of the materials used to build 100,000 houses are therefore a critical consideration. Increased use of bio-based materials, like straw, could significantly reduce CO2 emissions from the construction industry, but are New Zealand farmers able to produce enough straw? Floor plans of two typical timber framed three-bedroom Kiwibuild houses were adjusted to incorporate an experimental timber and straw bale wall panel system and the number of straw bales required was established. The quantity of straw produced annually in Aotearoa New Zealand and the number of bales available for construction was calculated using industry data. The results show that at current production levels there is enough straw available to build more than ten percent of the total number of detached houses consented in 2017, clearly demonstrating that the grain growing sector does have the capacity to supply enough straw.
[Margot Hall formerly known as Min Hall]
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Architectural Science Association (ANZAScA), Australia
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© 2019 – All rights reserved and published by The Architectural Science Association (ANZAScA), Australia
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