Rainwater is recycled by using the roof as a storage tank; from here, the water collected is taken underground where there is a 53,000-litre reclamation tank. The sheathing too, composed of a structure of diamond-shaped steel modules, was not merely a formal choice, since it meant that it was possible to use 20% less steel than would have been necessary for more conventional systems.
Regarding the layout, the atrium on the ground floor leads to all the other parts of the building and is flanked by an auditorium, a lobby and areas providing restaurant services. In the atrium too, there is a spectacular "Icefall" created with recycled water, that guarantees the microclimatic comfort of the ground floor area.
Laura Della Badia