GCA Arquitectes

This is a very stimulating sun protection mechanism.

From the front view, the design seems to be a simple formalism. However, its interest lies in the fact that it grows inwards, like vertical slats. Including these slats in a partially perforated plane with an abstract composition allows the architects to escape from a conventional image.

In this northwest orientation, the system perfectly obstructs solar radiation during the last hours of summer days, without limiting the street view or the entry of light.

Years after the construction of the AC hotel in the Forum area, the one in Sants was built. The construction solution adopted for the rainscreen façade is practically the same in both cases. Again, a lightweight enclosure is employed when the use demands low thermal mass solutions. Again, a reinforced frame supporting the window is the structure required to release an opening in this unidirectional façade structure.

The AC Hotel was one of the first buildings in Barcelona in which a ventilated façade system was used with a light inner layer made of cement boards over metal folded sheet profiles. 

Since then, these systems have evolved to provide a clearer solution regarding  the continuity of the thermal insulation and air tightness. This is achieved by improving the solution in the slab edge and with the adequate treatment of joints.