Sun protected facades: either ETICS or rain screen (070)

The building for a student’s residence at the South Diagonal Universities Campus uses two different façade systems: the first, ETICS, solves water tightness thanks to the impermeability of the rendering; the second, rain screen, uses an open-joint outer sheet and a drainage cavity for this same purpose.

The ETICS facade, looking southeast, is protected from solar radiation with horizontal slats that cover both the openings and the opaque area. If a rain screen façade system would have been used for this enclosure, the "shadow" effect would have occurred without adding anything else since it is implicit in the rain screen façade. Obviously the building would not have been the same.

We simply want to highlight, on the occasion of this case study, the double function, watertight and solar protection, of the rain screen façade, making this parallelism with a SATE system plus some slats over it.