The main envelope consists of a grey SSG unitised façade, typical dimension 2m wide x 3.8m high clad with high performance DGU low – iron glass ( light transmission 48.5%
- solar factor 28.5% - U= 1.0 W/m2K). These performances have been achieved with a “double-frit” 1mm diameter ceramic dot screen-printed and baked onto an internal layer
of the double-laminated glass panels, which also decreases the solar gain. In order to improve the performance, the vision units are alternated with spandrel units, dimension 1m wide x 3.8m high, reproducing a chessboard pattern.