The building sector is responsible for a significant share of global greenhouse gas emissions, raw material usage, and waste generation, driving the need for new circular design strategies. Among these, Design for Disassembly (DfD) promotes the reuse, repair, and recycling of building components. However, existing quantitative DfD assessment methodologies generally require extensive preliminary studies, which limit their practical use. This article presents a new quantitative DfD assessment methodology developed within the EU-funded INFINITE project, which aims to provide designers with a simple yet robust tool to evaluate the detachability potential of building integrated systems without requiring prior environmental studies. This methodology has been designed to evaluate specific DfD scores for maintenance, reuse, and recycling, using the mass and lifespan of products or systems as weighting factors. The tool was tested and validated on several systems developed during the INFINITE project. In the specific case of the Building Integrated Solar Thermal (BIST) system, it successfully identified key design improvements—such as enhanced accessibility for maintenance operations and optimized component connections. Industrial partners reported high usability and recognized the tool as a valuable decision-support instrument during early development phases. Nevertheless, the assessment methodology also revealed some limitations related to the assessment of the specific components and end-of-life scenarios, and to the absence of a holistic evaluation of trade-offs between mass-based score and environmental impacts.
Deru et al. (Wed,) studied this question.
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