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Ecological Potential of Building Components in Multi-Storey Residential Construction: A Comparative Case Study between an Existing Concrete and a Timber Building in Austria

Author

Listed:
  • Henriette Fischer

    (Research Unit of Ecological Building Technologies, Institute of Material Technology, Building Physics and Building Ecology, Faculty of Civil and Environmental Engineering, Vienna University of Technology, A-1040 Vienna, Austria)

  • Martin Aichholzer

    (Department Building and Design, University of Applied Sciences Vienna, A-1100 Vienna, Austria)

  • Azra Korjenic

    (Research Unit of Ecological Building Technologies, Institute of Material Technology, Building Physics and Building Ecology, Faculty of Civil and Environmental Engineering, Vienna University of Technology, A-1040 Vienna, Austria)

Abstract

With the introduction of energy-efficient buildings, the importance of embodied energy in new buildings has become increasingly relevant to minimising the impact of climate change. This study compares two existing four-storey residential buildings: one building has a reinforced concrete (RC) structure and the other has a timber structure. The study’s aim is to find out which building components are responsible for the largest embodied impacts and whether there are differences between the two construction methods. The specificity of the wooden building is the combined use of solid and lightweight timber elements. The methodology consists of a general life cycle assessment (LCA) and a more detailed analysis of the product stage using the eco2soft software. The heating and cooling energy demand was calculated using the WUFI Plus software with recent regional climate data sets. The results show that for both types of construction in multi-storey buildings, it is not only the superstructure that needs to be considered, but also the floor structures, which have a major influence on the embodied impact. The timber building requires less energy to maintain the indoor climate within the set temperatures. As climate change has progressed rapidly in Austria in recent years, it is recommended that the standards for climate models be updated more quickly to allow realistic prediction of thermal comfort at the design stage.

Suggested Citation

  • Henriette Fischer & Martin Aichholzer & Azra Korjenic, 2023. "Ecological Potential of Building Components in Multi-Storey Residential Construction: A Comparative Case Study between an Existing Concrete and a Timber Building in Austria," Sustainability, MDPI, vol. 15(8), pages 1-18, April.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:8:p:6349-:d:1118114
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    References listed on IDEAS

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    1. Zhongjia Chen & Hongmei Gu & Richard D. Bergman & Shaobo Liang, 2020. "Comparative Life-Cycle Assessment of a High-Rise Mass Timber Building with an Equivalent Reinforced Concrete Alternative Using the Athena Impact Estimator for Buildings," Sustainability, MDPI, vol. 12(11), pages 1-15, June.
    2. Minunno, Roberto & O'Grady, Timothy & Morrison, Gregory M. & Gruner, Richard L., 2021. "Investigating the embodied energy and carbon of buildings: A systematic literature review and meta-analysis of life cycle assessments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 143(C).
    3. Roni Rinne & Hüseyin Emre Ilgın & Markku Karjalainen, 2022. "Comparative Study on Life-Cycle Assessment and Carbon Footprint of Hybrid, Concrete and Timber Apartment Buildings in Finland," IJERPH, MDPI, vol. 19(2), pages 1-24, January.
    4. Rabaka Sultana & Ahmad Rashedi & Taslima Khanam & Byongug Jeong & Homa Hosseinzadeh-Bandbafha & Majid Hussain, 2022. "Life Cycle Environmental Sustainability and Energy Assessment of Timber Wall Construction: A Comprehensive Overview," Sustainability, MDPI, vol. 14(7), pages 1-30, March.
    5. Diana Carolina Gámez-García & José Manuel Gómez-Soberón & Ramón Corral-Higuera & Héctor Saldaña-Márquez & María Consolación Gómez-Soberón & Susana Paola Arredondo-Rea, 2018. "A Cradle to Handover Life Cycle Assessment of External Walls: Choice of Materials and Prognosis of Elements," Sustainability, MDPI, vol. 10(8), pages 1-24, August.
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