Project Description: The external skin consists of 15 mm laminated solar control glazing; the internal skin consists of solar control fixed glazing. Aluminum 50-mm-wide louvers are integrated into the 80 cm-wide corridors, which are equipped with walkway grilles for access. 

Fresh air is supplied at the bottom level then is extracted at a 21 m height through power-operated vents. Both layers of this buffer double façade are completely sealed. The building is conditioned with a conventional HVAC system. Adjacent twin towers do not utilize the double-skin façade system. 

The main advantage of the double-skin façade system is the improvement in thermal comfort. In winter, the air vents in the corridor can be closed, letting the air warm up, which reduces the difference between inside and outside temperatures and consequently reduces heat loss. Warm air increases the surface temperature of the glass, which makes the area near the windows more thermally comfortable. For this building, the large glass area provides daylight access, which enhances motivation, performance and productivity at work.