The project is part of a program of "thermal rehabilitation" for schools made in the reconstruction period, after the war.
These buildings are technically similar. Not too deep and built in precast concrete, they are characterized by their linear and regular calepinage facade. Our work was done for two buildings, a 100 m long, and another of 300 m.
This buiding overlooks a huge yard that offer you a step back and a view to the out of scale building placed in the site.
One of the main challenge for this project was the obligation to work in a busy site. For the technical part, we imagined a prefabrication system that allows a soft implementation: a system to avoids disturbing the operation and life of the school.
The operation happened in two stages: complete facades, windows and cladding, are first "plugged" on to the existing facade. Gradually, class by class, old windows are removed and replaced; finishing modules (including blinds and storage) are attached to the new facade. The vertical moldings elements are finally implanted in masked time.
The architectural idea of this project respects and enhances the intrinsic quality of the original building: this one is related to its scale, its prefabrication and the molding of its facades. We tried to avoid simplifying or "smoothing" the building. Our proposal is very clear: it aims to amplify the urban relation between the monochrome building and its environment.
The ground floor offers something else: it allows a special relationship with the students. Built in wood, it acts as both a “pedestal” for the building, and a "recreational ground floor" in direct relationship with the courtyard.
As part of a rehabilitation such as this, the energy performance coefficient impose a conventional consumption Cep <90 kWhEP / m² / year, or a class B energy labeling of buildings.