1168 Applying life cycle assessment with minimal information to support early-stage material selection

Authors

  • Matthew Roberts University of Bath, Faculty of Engineering and Design, Department of Architecture and Civil Engineering, Claverton Down, BA2 7AY Bath, United Kingdom
  • Valeria Cascione University of Bath, Faculty of Engineering and Design, Department of Architecture and Civil Engineering, Claverton Down, BA2 7AY, Bath, United Kingdom
  • Stephen Allen University of Bath, Faculty of Engineering and Design, Department of Architecture and Civil Engineering, Claverton Down, BA2 7AY, Bath, United Kingdom
  • Barrie Dams University of Bath, Faculty of Engineering and Design, Department of Architecture and Civil Engineering, Claverton Down, BA2 7AY, Bath, United Kingdom
  • Daniel Maskell University of Bath, Faculty of Engineering and Design, Department of Architecture and Civil Engineering, Claverton Down, BA2 7AY, Bath, United Kingdom
  • David Coley University of Bath, Faculty of Engineering and Design, Department of Architecture and Civil Engineering, Claverton Down, BA2 7AY, Bath, United Kingdom

Keywords:

life cycle assessment, bio-based materials, circular economy, uncertainty

Abstract

Traditional life cycle assessment (LCA) is too data intensive and time consuming to be used during typical building design processes. Conducting an LCA during the building design process therefore requires simplifications and assumptions. Such ``screening LCAs'' are quicker and can be used with less data but introduce greater uncertainty. Unfortunately, uncertainty is not reflected in standard deterministic LCA calculations, which produce single-point values in LCA results. Thus, in this study, data quality scoring has been incorporated into a screening LCA to produce probabilistic predictions of environmental performance based on limited data. The approach has been applied during the design process of a bio-based wall panel designed for a circular economy. A combination of ecoinvent and material data sheets were used to analyse a wide range of novel bio-based insulation materials. The screening LCA analysed global warming potential and identified a short-list of promising materials that were then subjected to a detailed LCA for further consideration in the design. The method uses publicly available information and can be applied at material or building-element level. The method thus helps designers estimate environmental impacts without hindering the design process.

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Published

2022-12-21

How to Cite

Roberts, M., Cascione, V., Allen, S., Dams, B., Maskell, D., & Coley, D. (2022). 1168 Applying life cycle assessment with minimal information to support early-stage material selection. Acta Polytechnica CTU Proceedings, 38. Retrieved from https://ojs.cvut.cz/ojs/index.php/APP/article/view/8252