The OSIRYS project developed innovative forest-based biocomposites for building facades and interior partitions. It focused on enhancing indoor air quality in new constructions and retrofits.
Project Goals
OSIRYS aimed to create sustainable materials from forest wastes, like thermoset epoxy resins and lignin-based polymers reinforced with natural fibers (wood, flax, hemp) and cork for insulation. These biocomposites (>75% biomass) reduce VOCs, formaldehyde, particulates, and microbes while improving thermal/acoustic insulation, breathability, and fire safety.
Key Developments
Materials included light foam biocomposites for panels, profiles via pultrusion, and photocatalytic coatings for air purification. Products encompassed multilayer facades, curtain walls, and partitions, tested for structural stability, hygrothermal performance, and compliance with building codes.
Applications and Testing
Demonstrations occurred in Spain and Sweden, validating energy efficiency (25% embodied energy reduction) across climates. Systems supported prefabricated or hybrid assembly for residential and tertiary buildings.
Project Link: osirysproject.eu


