Heavy: > 125 kg/m2

Glass: lightness, transparency; that is the message the façade of this police headquarters building wants to give. And it achieves to do it even though the façade is nor light, neither transparent. Resorting to the horizontal serigraphy combined with the thin eaves projecting shadow over the façade contributes an image of dynamism typical of an inhabited interior. If we take a deeper look we will see the glass is quite reflective and the eaves are randomly distributed even in the opaque area of the façade. 

The architects use an ETICS solution for the facade of this public library in Sant Gervasi. Formally the solution is very appropriate. The continuous coating offered by the mortar rendering allows defining a series of abstract volumes on which extend the garden of the Villa Florida.

It is difficult to understand the need of building this thick, load bearing, cast in-situ concrete wall hidden behind a light cladding made of different layers: mineral wool; coloured ribbed plates; glass slats. In the inside, the concrete wall is again hidden, in this occasion by furniture. The climbing formwork system that made possible this wall had to be successively cut so as to be adapted to the changes on the diameter and curvature of the tower. Not less must have been the difficulty when preparing the reinforcement.

This mixed-use complex apparently resort to the use of ceramics to integrate the building into a historic industrial district that still conserves 19th-century architecture - 22 @, Barcelona. However, using a specific material is not enough to consider the building integrated into a context. The material is not simply matter; it is a format, a constructive technique and a system.

With this project we want to exemplify the scarce use of materials with which HArquitectes resolve their architecture, and therefore their facades. In this occasion, only two materials: thermal insulation and perforated brick (gero). If in the interior wall, the structural support, the brick is arranged in a suitable way so as to resist the loads transmitted by the slab; in the outer wall, the same brick is arranged rotated showing its perforated surface, therefore, allowing the chamber between the two walls to be ventilated.

Facades formed by double walls present the problem of possible condensation of the water on the cold side of the insulation. This problem is hardly solvable when it is committed to preserve the water vapor diffusivity of the whole enclosure. The outer wall will hardly dissipate water vapor before it condenses. Harquitectes solve this problem in this house in Sant Cugat by means of punctual microventilations, allowing them to escape from the traditional image of cavity wall. Rainwater tightness is entrusted to the characteristics of the outer ceramic layer. 

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 facade of the Broadwalk House building stands out for having exploited to the maximum the potential of prefabricated concrete panels.The speed on the execution of the building was decisive in the decision making. This requirement led to resort to prefabrication of both the structure and the enclosure.Being a façade where the hollow dominates, the panels were designed as concrete frames that surround large windows. About two-thirds of the surface of the panel is glass.