Case Study

Façade and roof embrace in this sustainable house built with Dekton

Leire Otamendi & Joaquin Aznar

Álava Residential  - Alava Residential 3 51

Location

Álava, Spain

Matériau

Dekton

Couleur

Trilium

Quantité

600 m2

Architecture/Design

Leire Otamendi & Joaquin Aznar

Application

Ventilated Façade

Photographie

Xabier Eizaguirre Peral

Épaisseur

4mm | 8mm

A sustainable initiative

Passive houses have ceased to be a trend, but the new normality. Sustainability in architecture is here to stay. The proof of this is that end users are beginning to demand sustainable solutions, as has happened in this private residence in Álava, in northern Spain.

The client, who is involved in the construction industry, gave us free rein to build his passive house, explains the architecture studio. In order to achieve the purest possible geometry, a continuous, ventilated envelope for the façade and roof was planned. To this end, we chose Dekton ultra-compact surface.

Continuous insulation

One of the main architectural challenges was to achieve continuous insulation between the façade and the roof without a single thermal bridge. The second requirement was to ensure waterproofing and minimise the need for maintenance in the future. The studio came up with a unique and innovative solution for these two challenges. “Protection against heat is as important as protection against cold”, they explain.

The house has been designed according to passive approaches, paying special attention to the thickness of the insulation, the cladding and the thermal and ventilation installations. “In the living room, we have taken the liberty of creating a 4.40 m opening by means of two high-quality sliding panels that are hidden in the façade. The indoor-outdoor connection is very important to us, even if it means ‘sacrificing’ a totally passive design for one that is ‘almost passive’ in terms of energy consumption”.

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Dekton, lightweight and resistant

This sustainable residence has been possible largely due to the properties of Dekton ultra-compact surface. With thicknesses of 4 and 8 millimetres, Dekton offers a lightweight but resistant façade: variations in temperature, humidity and sunlight do not affect neither the properties nor the colour of Dekton.

“Our choice of material has also been based on the texture”. The architecture studio remarks that Dekton Trilium provides the building with a very distinctive appearance, and it also emphasises the developer’s involvement and commitment when it comes to dealing with different construction details. The result is a unique, ‘almost passive’ residence.

Álava Residential  - Alava 9 scaled 61

Cosentino’s materials used in this project

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