Environmental impact of non-residential and multi-family buildings in Belgium
ベルギーにおける非住宅建築物及び集合住宅の環境影響 (AI 翻訳)
M. Haverbeke, Y. Decorte, Marijke Steeman
🤖 gxceed AI 要約
日本語
本研究はベルギーの非住宅建築物と集合住宅7件の環境影響をLCAで評価。結果はCO2-eqと集約影響点で示され、運用段階の影響が最大79%を占める。床と壁が躯体影響の大部分を占め、構造全体で50%以上を占める。
English
This study assesses the environmental impact of seven non-residential and multi-family buildings in Belgium via LCA. Results are expressed in CO2-eq and aggregated points, with operational impact accounting for up to 79%. Floors and walls dominate the embodied impact, and the whole structure accounts for over 50%.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の建築分野では、SSBJや有報でのGHG開示が進む中、本研究成果は非住宅建築の環境影響要因を定量的に示し、材料選択や設計段階での脱炭素化に示唆を与える。ただし、ベルギー固有のデータであり、日本の気候や基準への直接適用には注意が必要。
In the global GX context
Globally, this study adds to the sparse literature on non-residential building LCA, providing empirical data on embodied vs operational impacts. The findings can inform building decarbonization strategies and material choices, relevant to ISSB and CSRD disclosure requirements for the construction sector.
👥 読者別の含意
🔬研究者:Provides comparative LCA data for non-residential buildings, useful for further meta-analyses and methodology refinement.
🏢実務担当者:Architects and contractors can use the breakdown of environmental impact by building element to prioritize low-carbon materials and design.
🏛政策担当者:Policymakers can cite the variation in operational versus embodied impacts to design building codes that address both construction and use phases.
📄 Abstract（原文）
Reducing the buildings’ carbon footprint is urgent, given the significant contribution of the building sector to rising CO2 emissions. Besides global warming, other environmental indicators (e.g., acidification, ozone depletion, land use) also degrade our planet’s ecosystem. Practitioners, such as contractors and architects, often lack practical knowledge on how to effectively minimise these impacts. Greater insight is needed into key contributors to the environmental impact and the role material choices can play in it. While much research has focused on residential buildings, comprehensive studies on non-residential buildings remain limited. In this study, seven recently built Belgian non-residential buildings and multi-family houses (MFHs) are selected to provide first insights into which building elements primarily contribute most to the environmental impact, what role material choices play, and how big the contribution of the operational impact is. The selection encompasses diverse typologies and construction methods, including solid, massive timber and timber frame construction. The sample includes an office building, a primary school, three childcare centres, an assisted living facility and an apartment complex. The buildings’ environmental impact is assessed through life cycle assessment (LCA) considering both embodied and operational impact. The results are analysed based on the Global Warming Potential (GWP) and the aggregated impact, expressed in CO2-eq and Points respectively. The results show that the environmental impact ranges from 66 to 235 mPt/m2, or from 534 to 1,572 kg CO2-eq/m2, with the large variation attributable to the share of the operational impact (up to 79%). The floors show the highest contribution (35-59%) to the embodied impact due to the structural elements and floor finishes. This is followed by walls (15-38%), windows (5-22%), roofs (7-20%), and beams and columns (1-15%). Furthermore, the whole structure accounts for more than 50% of the total embodied impact, although interior finishing materials also take up a notable share.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1088/1755-1315/1615/1/012009first seen 2026-06-29 07:31:09
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