Building complex in Switzerland

As the technical infrastructure failed to meet present-day standards, the concrete building in La Chaux-de Fonds had to be refurbished from top to bottom. The concept: retain and recycle rather than replace and rebuild.
The recessed balconies on the south side retained their original style, albeit with an elegant upgrade: movable glass and expanded metal units and Finstral windows with coupled sashes vouch for flexible solar protection and high sound insulation. On the north façade, the focus was on optimising energy efficiency: The aluminium windows have measurably improved thermal insulation while nonetheless respecting the original style. Along with the large window units there are smaller windows featuring flush, dark aluminium infill panels custom-manufactured by Finstral. The highlight of the northern façade is the new cladding made up of aluminium composite panels. It drapes over the façade like a second skin and ensures perfect thermal insulation.