Experimental characterization of the mechanical and functional performance of innovative ultra-low carbon sandwich panels and envelope systems for buildings

• The EU project InCSEB aimed for the development of five ultra-low carbon building steel envelop systems, based on wood fiber insulation, to meet the EU decarbonization targets by 2050. • A comprehensive experimental campaign was carried out to evaluate the functional and mechanical performances of the different envelope systems. • The results obtained so far are very promising and meet market expectations in terms of mechanical, seismic, thermal, environmental and regulatory performances. • Future work entails BIM objects, design guidelines, installation guidelines and further publications, as well as a project website with all key results and publication references. The use of low-carbon materials is key for decarbonizing the construction sector, but their innovation potential is still relatively unexplored. The EU research project InCSEB aimed at the development of five ultra-low carbon steel building envelope systems and sandwich panels for cladding and roofing applications. These façade systems and sandwich panels incorporate the innovative use of wood fiber, a renewable and bio-sourced insulation material, while achieving a high level of mechanical and functional performances and ensuring compliance with other requirements such as sustainability criteria. This paper provides an overview of the results of the experimental study that has been carried out to assess and validate the functional and mechanical performances of the proposed innovative insulation sandwich panels and façade systems, aiming to achieve a technology readiness level of TRL 7 by the end of the project. The experimental study shows very promising results, fulfilling market expectations regarding mechanical, seismic, thermal, environmental, and regulatory requirements.