Oral Presentation Ninth International Symposium on Life-Cycle Civil Engineering 2025

Sustainability in Built Heritage: A State of the Art in the Regulation and Tools (109636)

Gamze Gündüz 1 , Monica Capasso 1 , Silvia Santini 1
  1. University of Roma Tre, Roma RM, Italy

The construction sector significantly affects the environment in terms of emissions and wasting raw materials. In fact, structural assessment processes are responsible for emissions due to a variety of factors, such as the selection of materials, effective use of wastes, and land. In recent years, sustainability has emerged as a major topic of interest in the academic community, leading to the establishment of the first working groups with the outlook of achieving zero CO2 emissions. Furthermore, the definition of sustainability indicators plays a key role in minimizing the environmental impact associated with the Life Cycle Assessment (LCA). This research aims to give contribute to reviewing scientific literature about environmental impact assessments (EIA), sustainability indicators, protocols, tools, and guidelines. Among them, environmental impact evaluation involves reducing CO2 emissions starting with raw material extraction until the end-of-life disposal, through LCA. Also, most of the environmental data within the construction sector have been derived from Environmental Product Declarations(EPDs). These encourage lower the impact on the environment by giving prominence to those materials that can help reduce a building's load on the environment. Nevertheless, Green Building Rating Systems (GBRSs) set holistic framework conditions for assessing the sustainability of buildings based on their environmental impact; some of the well-known GBRSs across Europe are BREEAM, DGNB, HQE, and LEED. As regards the tools released for construction EIA, like EC3, One Click LCA, and SimaPro, they provide comprehensive LCA functionality and links into BIM tools for granular project analysis, with the limits of the EPDs availability, the high expertise requested and costs. Hence, this study aims to provide a review of the sustainability layout in the civil construction life cycle, highlighting the pros and cons of the tools now in force, and providing a practical framework of sustainability indicators with new LCA solutions to reduce environmental impact.