The supporting structure consists entirely of a grid of wooden glulam cross columns and glulam beams on which hollow-core concrete slabs rest. They are fully prefabricated and demountable. Efforts were also made to reduce the environmental impact of the façade. This was done through the choice of materials – glass, concrete and metal -, the façade composition, the demount ability and reusability of the materials. For this reason, the curtain wall and the second skin in expanded metal were developed according to a standard modulation.