音響性能の脱炭素化：乾式サブフロアシステムを用いたマスティンバー床組の比較ライフサイクルアセスメント
Decarbonizing acoustic performance: A comparative life cycle assessment of mass timber floor assemblies with dry subfloor systems (原題)
Pelin Tezcan, S. Cleghorn, Aedan Callaghan
🤖 gxceed AI 要約
日本語
マスティンバー建築の音響床組におけるコンクリート打設に代わる乾式サブフロアシステムの導入が、建物のGWPを大幅に削減できることをLCAで実証。リサイクル・バイオ素材の活用と音響性能の両立を示し、低炭素建築設計の指針を提供。
English
This study uses LCA to compare a dry subfloor system against a concrete topping in mass timber buildings, showing significant GWP savings while meeting acoustic requirements. It highlights the role of recycled and bio-based materials in decarbonizing building assemblies, offering a framework for carbon-neutral construction.
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、木造建築の普及と脱炭素化が進む中、本研究成果は乾式工法による炭素削減の具体例として参考になる。SSBJや建築物省エネ法への対応にも資する。
In the global GX context
Globally, this research supports the shift toward low-embodied carbon construction, aligning with ISSB and CSRD disclosure trends. It provides empirical evidence for using dry assemblies to reduce GWP, relevant for green building certifications like LEED and Living Building Challenge.
👥 読者別の含意
🔬研究者:Provides a comparative LCA framework for acoustic assemblies, useful for further research on low-carbon building materials.
🏢実務担当者:Offers actionable insights for selecting dry subfloor systems to reduce embodied carbon in mass timber projects.
🏛政策担当者:Highlights the potential of dry construction methods to meet carbon reduction targets in building codes.
📄 Abstract（原文）
As mass timber projects push the envelope of low-embodied carbon construction and design for disassembly, challenges associated with acoustic floor assemblies have become a critical barrier to full building decarbonization. This work aims to use the embodied carbon calculation tool built into the Branch3D Software, analyzing both the Membertou Office Building in Cape Bretton as well as the Yale Divinity School’s New Living Village. The embodied carbon footprint was calculated for a dry assembly in lieu of a business as usual concrete topping base case. As the largest university housing complex to pursue Living Building Challenge certification, the Yale Divinity School project replaced non-structural cementitious topping with a dry subfloor system utilizing GenieBoard with 100% recycled content. Cementitious materials are often used to increase mass to the floor-ceiling assemblies. This has a high contribution to the overall global warming potential (GWP) of the building. This study evaluates the GWP savings when incorporating recycled and bio-based materials into acoustic assemblies, while also achieving the project acoustic requirements without the use of wet-trade materials. The results provide a framework for selecting acoustic treatments that align with carbon-neutrality goals without compromising occupant comfort.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1121/10.0044929first seen 2026-08-30 05:24:34 · last seen 2026-09-22 05:13:03
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