The façade systems, developed to meet the architect and client requirements, include structural silicone glazed units and spandrel units with inward opening purge vents, with a 4mm thick perforated aluminium scenographic balustrade, to a bespoke design. These units include integrated duct systems, which have been bespoke design and tested to achieve the best in and out air exchange, and manual opening through the integrated internal balustrade.
The structural silicone units, 1500mm wide and 2850mm high, consist of Low-E double glazed unit with a “dot matrix” silk printing to minimise solar radiation.
Profiles and decorative balustrades feature a silver or dark grey anodized finish, depending on the elevation.
In order to emphasize the aesthetics, a careful use of different colours between the main elevations of the four towers gives life to ever-changing shading. These tones of grey underline the vertical character of the scheme and create subtle colour changes, accentuated thanks to the star section of the building in plan where each dihedral projects its own colour shade.
A study of the façade system, that paid particular attention to detail, was carried out to allow the achievement of an excellent thermal performance averaged over the entire floor equal to 1.0 W/m2K°, quite a success starting from a single double glazing.
Another innovative challenge overcome was to apply a third-generation Low-E coating capable of mediating between the need for an excellent sunscreen in the summer phase and the potential recovery of solar gains in the winter phase (application on the internal face, # 3) G (solar gain) tot. 58% in clear vision and 32% in association with screen printing coverage.
