Assessing the Impact of Façade Typologies on Life Cycle Embodied Carbon in University Building Retrofits: A Case Study of South Korea

Jingwen Liu and Chungyeon Won ()
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Jingwen Liu: Department of Architecture, College of Engineering, Korea University, Seoul 02841, Republic of Korea
Chungyeon Won: Department of Architecture, College of Engineering, Korea University, Seoul 02841, Republic of Korea

Sustainability, 2024, vol. 16, issue 20, 1-25

Abstract: This study examines the influence of façade typologies on Life Cycle Embodied Carbon (LCEC) in retrofitting university buildings in South Korea. By analyzing 28 cases across seven retrofit scenarios, four main façade types—PW-1, PW-2 (Punched Walls), WW (Window Walls), and CW (Curtain Walls)—were identified as key drivers in retrofit outcomes. PW-1 and PW-2 often require over-cladding due to demolition complexities, whereas WW and CW, despite undergoing full demolition and re-cladding, do not necessarily result in higher carbon emissions. The use of Exterior Insulation and Finish Systems (EIFS) can achieve up to a 35% reduction in LCEC compared to traditional materials like stone, particularly in cases requiring minimal structural reinforcement. By balancing sustainability with architectural integrity, this study offers valuable guidance for similar projects globally, providing insights into optimizing retrofit strategies for more sustainable building practices.

Keywords: life cycle embodied carbon (LCEC); facade retrofit; sustainable retrofit; facade typology; environmental impact (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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