Variable geometry
The hotel tower (GF+25)* was designed with an organic form and appears to change as one moves around it. Given the building’s geometrical complexity, the façade is divided into two skins. The inner skin is a sealed envelope based on a light curtain-wall solution with aluminium and glass panels designed to fully meet all acoustic, thermal and sealing requirements. The exterior façade acts as a second skin that provides texture and accommodates the tower’s variable geometry. The skin is made of independent aluminium tubes whose ends are attached to ball-and-socket joints that allow for the desired torsion.