Life Cycle Assessment of Building Facade Material in Construction Industry: A Study on Residential Buildings in Pakistan
建築業界における外壁材のライフサイクルアセスメント：パキスタンの住宅に関する研究 (AI 翻訳)
M. Ahsan, P. Cao, Muhammad Muzammil, Li Juan
🤖 gxceed AI 要約
日本語
本研究はパキスタンの住宅建築における外壁材のライフサイクルアセスメントを実施。従来材と持続可能な材料を比較し、軽量コンクリートブロックや断熱材等の採用でCO2排出量を48.9%削減できることを示した。冷却負荷も最大17.5%削減でき、NDC達成に貢献する。
English
This study conducts a cradle-to-grave LCA of building facade materials for residential buildings in Pakistan, using BIM over 50 years. Switching to lightweight concrete blocks, plaster, polyurethane insulation, and triple-glazed windows reduces embodied CO2 by 48.9% and peak cooling load by up to 17.5%, supporting Pakistan's NDC targets.
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
パキスタンの事例だが、日本の住宅断熱・省エネ基準の見直しや建設資材のライフサイクル評価に示唆を与える。特に、軽量材料によるCO2削減効果は日本の建築分野の脱炭素にも応用可能。
In the global GX context
This paper provides empirical LCA evidence from Pakistan's residential sector, showing significant decarbonization potential through locally available materials. The methodology is scalable and relevant to developing countries' NDCs and global building sector emission reduction efforts.
👥 読者別の含意
🔬研究者:Demonstrates BIM-based LCA methodology for building materials in hot-dry climate, with quantitative emission and energy savings.
🏢実務担当者:Offers cost-effective material choices for energy-efficient residential construction in similar climates, with clear performance data.
🏛政策担当者:Provides evidence for updating building codes and supporting NDC targets through material switching in residential construction.
📄 Abstract（原文）
The high rate of urbanization, high general expenditure on housing and cooling with shortages of water, power and a large population exceeding 240 million, make the residential sector of Pakistan a great challenge to the environment since most of the energy used is on construction and operation of houses. Through a cradle-to-grave evaluation that utilizes BIM for over 50 years, it compares traditional materials (common brick, cement plaster, single glazes) with the sustainable ones (lightweight concrete blocks, lightweight plaster, polyurethane insulation, triple-glazed windows). The present case will result in embodied CO2 emissions reduction to 48.9% (56.44 tonnes to 28.83 tonnes) and maximum operational reduction to 17.5%. The switching towards lightweight concrete blocks (W1), lightweight plaster (P1), polyurethane insulation (WI1), and triple-glazed windows, in particular, cut the peak cooling total load (PCTL) and CO2 by 15.8%, 7.86%, 9.5%, and 17.5%, respectively. These are the locally sourced, inexpensive materials that increase the energy efficiency of the hot and dry climate of Multan, where cooling takes up the majority of the energy demand. These results are scalable and cost-effective to the residential sector and directly contribute to the Nationally Determined Contributions of a 50% reduction in GHG by 2030 in Pakistan and Sustainable Development Goals 11 (Sustainable Cities) and 13 (Climate Action).
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.46610/ijbimac.2026.v02i01.001first seen 2026-06-29 06:36:04
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