Involucro edilizio industrializzato in acciaio sagomato a freddo: applicazione a un caso studio Industrialised building envelope in cold-formed steel: a case study application

The ambitious climate goals set by the European Union are redefining the priorities of the construction sector, prompting a thoughtful reconsideration of how to balance sustainability and technological innovation. In this context, Off-Site Construction techniques and energy-intensive industries—led by steel and cement—cover a strategic role. The international debate is shifting from the energy efficiency of building envelopes to a deeper awareness: the optimisation of resources without compromising performance. Considering the energy-intensive steel sector, material efficiency is already an available option through Cold-formed steel-based (CFS) technologies. Among the various Cold-formed steel-based technologies two key solutions can contribute to providing both structure and envelope within the broader framework of the multi-layer dry construction technique: Light Steel Frame (LSF) structures, which serve as the structural skeleton, and sandwich panels, which form the external envelope. This article aims to showcase the potential of building envelopes built with Cold-formed steel-based systems through the detailed analysis of the technical characteristics and the construction phase of a case study building: a recreational and rehabilitation centre named CR2 Sinapsi.