The system, which includes fixing channels and custom-designed façade profiles, exploits the very high physical and mechanical qualities of steel. It allows much larger spans with slimmer structures, thanks to its high modulus of elasticity (three times that of aluminium) and low coefficient of thermal expansion (considerably lower than aluminium and wood, and very similar to glass indeed). With very slim section (up to 50 mm), it is possible to create transparent facades, glazed roofs and conservatories of large dimensions, with outstanding performance in terms of tightness and thermal-acoustic insulation. An advanced system for cutting-edge architecture.