l‘Office 64 de l‘Habitat, a French housing association, built their new Bayonne headquarters with a very literal interpretation of the concept of green building. Wanting the building to be extremely efficient in terms of energy consumption, it was given several sustainable attributes upon construction. Using a wide range of architectural materials; timber, concrete, glass and composite, Arotcharen Architectes were able to create a façade with maximum climate control.
The louvers produce both an internal and external ventilation system. Creating an effect often seen in green house construction, the sun’s energy is captured and used as an internal heat source in the winter. Yet in the summer, the louvers open based on specific ambient temperature to produce natural ventilation, allowing the building to “breathe.”
Pertruding from the building is a low entrance featuring a vegetative roof, which serves an additional insulation and rainwater functionality. The glass components of the exterior reduce electricity costs, by allowing solar infiltration throughout the day.
The particular aluminum composite finish chosen was Alucobond Spectra Autumn. Similar to leaves in autumn, the panels change color in a range of greens and reds based on visual perception and solar intake. The use of green exterior panels serves as yet another literal and fantastical interpretation of green building.
images courtesy of © Mathieu Choiselat