Metal

Batlle and Roig resort in this occasion to a stick curtain wall where partial structures are assembled at each slab front without physical continuity between them. Glass panes are then supported over those partial structures so as to close the façade (have a look to "Cadireta" curtain wall structure). This structure system does not need that mullions keep verticality along the whole façade, and so they do; besides, Batlle and Roig show only one mullion every two glass panes.

The ventilated façade of the Institut Geològic de Catalunya -IGC- responds with the inner layer to the needs in terms of windows distribution that the use requires; and with the exterior, to formal aspects. The perforated corten sheet that clads the entire facade allows giving an abstract image, solving domesticity behind it. This perforated metal sheet, beyond showing a certain drawing, allows playing with transparencies, a rich composition resource possible in multilayer facades.

The façade of the Sant Jordi student residence building is characterized by the continuity of the zinc sheet. This sheet covers the opaque wall as well as the windows, in this second case as an exterior shutter. The façade escapes from the verticality by means of a discreet but sufficient gesture. Both strategies, material and geometry, make the set stand out in a medium-high-class residential context, characterized by ceramic brick buildings.

The architects’ challenge in the NIDO building is to combine the residential use with the image of a high tertiary tower in the center of London guaranteeing the adequate level of comfort. To do so, they resort to two fundamental strategies. Firstly, the fragmentation of the facade plane in different areas, according to the different housing units. This firs strategy permits to combine views, ventilation and solar protection. Secondly, construction using unitized panels.