GHG emissions from building renovation versus new-build: incentives from assessment methods
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2023-06-08
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Language
en
Pages
18
274-291
274-291
Series
Buildings and Cities, Volume 4, issue 1
Abstract
A variety of life cycle assessment (LCA) calculation methods and rules exist in European countries for building performance evaluation based on new-build. However, the increased focus on the retention and renovation of the existing building stock raises questions about the appropriateness of these the methods and rules when applied to renovation cases. Using a real renovation case, Danish, Finnish and Swedish LCA-based greenhouse gas emissions (GHGe) assessments are assessed for how they position building renovation in relation to demolition and new-build reference values. The influence of these three different methods is examined for future development policies. Results show that upfront emissions for renovation are significantly lower for all approaches. The Swedish approach had the lowest GHG emissions compared with a scenario with demolition and new-build due to the method, which only includes upfront emissions of new materials. The Danish and Finnish renovation cases each performed worse in comparison with the new-build future emissions, specifically from operational energy use. Therefore, method development should consider incentives for upfront and future emissions. Furthermore, methods could account for the existing materials in the building, which are included in the Danish and Finnish approaches. This would provide incentive for renovation and reuse.Description
Funding Information: The publication received research funding from both Realdania (grant number PRJ-2019-00308) and The Swedish Energy Agency (grant number P2021-00235). Publisher Copyright: © 2023, Web Portal Ubiquity Press. All rights reserved.
Keywords
building assessment method, building regulation, demolition, greenhouse gas (GHG) emissions, life cycle assessment (LCA), policymaking, refurbishment, renovation
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Citation
Zimmermann, R K, Barjot, Z, Rasmussen, F N, Malmqvist, T, Kuittinen, M & Birgisdottir, H 2023, ' GHG emissions from building renovation versus new-build: incentives from assessment methods ', Buildings and Cities, vol. 4, no. 1, pp. 274-291 . https://doi.org/10.5334/bc.325