Heavy: > 125 kg/m2

It is a great pleasure to share this amazing example of good architecture with all Facad3s followers. There is no formal boasting, no latest generation materials, no added gadgets for energy production, no raw land or straw. The building manages to be attractive by being clever, and sustainable by being reasonable.

We applaud the appropriate choice of the different materials used in the construction of this residential building. Without extreme positions.

On the one hand, the architects combine a light dry-constructed structure with a heavier and wet-constructed façade. On the other hand, they do not try to “exhibit” sustainability by forcing structural wood to be seen.

Each thing has its place and its justification.

I must confess I was really impressed when I saw those tile-cladded huge one-piece-high concrete panels. My doubt was: did they really solve the panels that included windows that same way? The joints among them expressed that.

A really interesting refurbishment proposal for a 1959 office building from a well-known catalane architect, Francesc Mitjans.

The challenge was renovating the façade, improving its thermal and watertight performance, while being respectful with a relevant building of the catalane recent architecture history.

Sauerbruch & Hutton, as always, please us with their magnificent architecture, accurate construction, and a sensitive and warm colour palette that perfectly fits the surroundings. 
Look at the interesting brick they develop for this project. Its geometry, enhanced by the different colours, decomposes the brickwork wall into a pixel surface, an abstract texture where each pixel projects shadow over the wall itself.
 

Resorting to precast concrete panels for the façade enclosure is nothing new. In fact, the use of said material in large-format boards of minimum-thickness is not new either, the ΩZ pre-stressed board system has been allowing it for some time. 

The thinness of the plate makes it difficult to perform an adequate sealing of the joint and therefore the tendency is to leave them open, and define a drained cavity on the back to grant water tightness. A rain screen.

Seeking for the new massivity we were talking about in the study "Closed joints claddings"

For more information about the case take a look to that video

Have a look to this façade solution, to the characteristics of the different layers overlapped, and then have a look to the Torre Agbar façade solution.

They look quite similar: a wall, in one case made of small elements while in the other made of concrete poured on site, a ribbed metal sheet, glass slats. In both cases the thermal insulation is in the inside.

Interesting sub-frame solving the window opening in all the façade depth. It includes the banister and a gap specially designed to hide the sun protection ¡inside the cavity of the rain screen façade!

A really interesting concrete solution.

As HEARING indicates at their own website "they used triangular fillets as profiled shuttering and were thus ables to cause the grain to protrude evenly from the surface after surface treatment, washing in this case, thus providing the desired structure."