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In 2023, Taiwan’s government passed the Climate Change Response Act, establishing a legal framework to guide policies aimed at achieving the net-zero goal by 2050. In the building sector, the Building Energy-Efficiency Rating System (BERS) and the Low Embodied Carbon Building Rating System (LEBR) were introduced to manage operational carbon and embodied carbon, respectively. This study presents a tool specifically designed for Building Information Modeling (BIM) users to calculate and visualize embodied carbon during the early-design stage. Developed on the Revit-Dynamo platform, the tool is connected to a local material database (LEBR database). A case study on a residential building design was conducted to assess the applicability of BIM-LEBR in providing a quantifiable evaluation of low-carbon design strategies. The results demonstrated that BIM-LEBR effectively supports visual integration in the early-design stage, with structural design changes having the most significant impact on reducing embodied carbon.

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BIM-LEBR: A BIM-Based Tool for Embodied-Carbon Evaluation in Building Early-Design Stage in Taiwan

  • 会议论文

  • 发表日期：

    2026年

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  • Yaw-Shyan Tsay,
  • Chih-Yao Wang,
  • Chou-Fang Tsai,
  • Hu-Hsiao Hsu

摘要

In 2023, Taiwan’s government passed the Climate Change Response Act, establishing a legal framework to guide policies aimed at achieving the net-zero goal by 2050. In the building sector, the Building Energy-Efficiency Rating System (BERS) and the Low Embodied Carbon Building Rating System (LEBR) were introduced to manage operational carbon and embodied carbon, respectively. This study presents a tool specifically designed for Building Information Modeling (BIM) users to calculate and visualize embodied carbon during the early-design stage. Developed on the Revit-Dynamo platform, the tool is connected to a local material database (LEBR database). A case study on a residential building design was conducted to assess the applicability of BIM-LEBR in providing a quantifiable evaluation of low-carbon design strategies. The results demonstrated that BIM-LEBR effectively supports visual integration in the early-design stage, with structural design changes having the most significant impact on reducing embodied carbon.