Optimising Carbon Emission Reduction in Prefabricated Buildings in Tropical Climates: Key Factors and Strategies

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:Provides a systematic LCA model for prefabricated buildings in tropical climates, useful for researchers in sustainable construction.

🏢実務担当者:Offers actionable strategies for reducing carbon emissions in prefabricated building projects, including material substitution and energy-efficient design.

🏛政策担当者:Highlights policy gaps in emission factor localization and suggests regulatory support for low-carbon construction in tropical regions.

Global warming has posed serious threats to human society, the economy, and public health. In response, countries worldwide have reached a consensus on reducing carbon emissions. The construction industry plays a significant role in global carbon emissions, and prefabricated buildings, as a product of construction industrialisation, show clear advantages in energy efficiency and emission reduction. In tropical regions, where the effects of climate change are more severe, the need for carbon reduction is even more urgent due to higher building energy consumption. This study adopts a mixed-methods research design to systematically investigate the carbon emissions of prefabricated buildings in tropical regions. A life cycle assessment (LCA) based mathematical model is developed to measure and analyse carbon emissions across five stages: material production, transportation, construction, operation, and demolition. Semi-structured expert interviews complement the quantitative findings, offering insights into emission characteristics, data localisation, and policy gaps. Additionally, case-based emission calculations are conducted to validate and refine the results. The results show that the material production and operation stages are the major sources of emissions, mainly due to the use of high-carbon materials and heavy reliance on air conditioning systems. Expert insights further reveal challenges such as insufficient localisation of emission factors and a lack of effective policy support. Based on these findings, multi-stage reduction strategies are proposed, including low-carbon material substitution, passive cooling and energy-efficient systems, localised supply chains, and design for recyclability. The study provides practical guidance for low-carbon prefabricated construction in tropical climates, with implications for policy and industry practice.

• semanticscholar https://doi.org/10.59953/paperasia.v41i6b.617first seen 2026-06-29 06:54:14