Assessing the environmental impact of using CLT-hybrid walls as a sustainable alternative in high-rise residential buildings

Bigyeong Shin; Seunghwan Wi; Sumin Kim

doi:10.1016/j.enbuild.2023.113228

Assessing the environmental impact of using CLT-hybrid walls as a sustainable alternative in high-rise residential buildings

Bigyeong Shin, Seunghwan Wi, Sumin Kim

School of Architecture

Yonsei University

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Cross-laminated timber (CLT), a bio-based material, is attracting attention as an alternative to conventional materials, to reduce the environmental impact of the construction sector. To the expansion of CLT application, the environmental impact of applying CLT, which was mainly used in low- and middle-rise buildings, to the outer walls of high-rise residential building was analyzed. The environmental impacts of 28 alternative walls were analyzed based on variations in CLT thickness and insulation type. Replacing traditional walls with CLT, including finishes, alternatives resulted in an average reduction of −35% in environmental impact. According to the standardized and weighted process, cellulose and glass wool are the most environmentally friendly alternatives.

Original language	English
Article number	113228
Journal	Energy and Buildings
Volume	294
DOIs	https://doi.org/10.1016/j.enbuild.2023.113228
State	Published - 1 Sep 2023

Keywords

Apartment
Cross-laminated timber (CLT) hybrid building
Embodied emission
Environmental impact
Exterior wall
High-rise residential building
Insulator
Life cycle assessment (LCA)
Material substitution
Timber

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.enbuild.2023.113228

Cite this

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title = "Assessing the environmental impact of using CLT-hybrid walls as a sustainable alternative in high-rise residential buildings",

abstract = "Cross-laminated timber (CLT), a bio-based material, is attracting attention as an alternative to conventional materials, to reduce the environmental impact of the construction sector. To the expansion of CLT application, the environmental impact of applying CLT, which was mainly used in low- and middle-rise buildings, to the outer walls of high-rise residential building was analyzed. The environmental impacts of 28 alternative walls were analyzed based on variations in CLT thickness and insulation type. Replacing traditional walls with CLT, including finishes, alternatives resulted in an average reduction of −35\% in environmental impact. According to the standardized and weighted process, cellulose and glass wool are the most environmentally friendly alternatives.",

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AU - Shin, Bigyeong

AU - Wi, Seunghwan

AU - Kim, Sumin

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Y1 - 2023/9/1

N2 - Cross-laminated timber (CLT), a bio-based material, is attracting attention as an alternative to conventional materials, to reduce the environmental impact of the construction sector. To the expansion of CLT application, the environmental impact of applying CLT, which was mainly used in low- and middle-rise buildings, to the outer walls of high-rise residential building was analyzed. The environmental impacts of 28 alternative walls were analyzed based on variations in CLT thickness and insulation type. Replacing traditional walls with CLT, including finishes, alternatives resulted in an average reduction of −35% in environmental impact. According to the standardized and weighted process, cellulose and glass wool are the most environmentally friendly alternatives.

AB - Cross-laminated timber (CLT), a bio-based material, is attracting attention as an alternative to conventional materials, to reduce the environmental impact of the construction sector. To the expansion of CLT application, the environmental impact of applying CLT, which was mainly used in low- and middle-rise buildings, to the outer walls of high-rise residential building was analyzed. The environmental impacts of 28 alternative walls were analyzed based on variations in CLT thickness and insulation type. Replacing traditional walls with CLT, including finishes, alternatives resulted in an average reduction of −35% in environmental impact. According to the standardized and weighted process, cellulose and glass wool are the most environmentally friendly alternatives.

KW - Apartment

KW - Cross-laminated timber (CLT) hybrid building

KW - Embodied emission

KW - Environmental impact

KW - Exterior wall

KW - High-rise residential building

KW - Insulator

KW - Life cycle assessment (LCA)

KW - Material substitution

KW - Timber

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U2 - 10.1016/j.enbuild.2023.113228

DO - 10.1016/j.enbuild.2023.113228

M3 - Article

AN - SCOPUS:85162135657

SN - 0378-7788

VL - 294

JO - Energy and Buildings

JF - Energy and Buildings

M1 - 113228

ER -

Assessing the environmental impact of using CLT-hybrid walls as a sustainable alternative in high-rise residential buildings

Abstract

Keywords

UN SDGs

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