en.Wedoany.com Reported - The renovation project for the large housing estate on Rue Paul Signac, located in the Solaure district of Saint-Étienne, France, is being advanced through a collaboration of several companies. The project is led by the OPH Habitat et Métropole agency, with Bouygues Bâtiment Sud-Est as the general contractor and the design work carried out by the Urb1n firm. The total construction period is 18 months, costing €10 million, and comprises three separate sub-projects.
The first phase involves the renovation of a residential area with two buildings containing 80 housing units and is expected to be completed in June. Romain Julien, head of the BBSE works group, explained that before undertaking the energy efficiency upgrades, the team connected a prefabricated wood chip boiler room, manufactured by the Creuse-based company Tigr, to the existing network to provide heating and hot water for the homes. The construction work includes insulating the exterior walls and roof, spraying insulation onto the basement ceiling, and replacing exterior doors and windows, which will raise the building's energy performance rating from F to C. Furthermore, the renovation of wet rooms and the construction of prefabricated steel structure entrance halls are also included.
More notably, Building B (containing 40 housing units), located along the RN88 national road, was demolished using a nibbling method by Arnaud Démolition company at night with a long-reach excavator, following the prior completion of asbestos removal.
The final phase of the project aims to renovate a slab block built in the 1950s. Romain Julien further explained that the building originally had 80 housing units, which have now been reduced to 27. The old corridors were demolished, and the team created openings in the slab block, converting it into individual residences by adding three stairwells and elevators. The clinker concrete structure required reinforcement with carbon fiber. Due to the thinness of the existing floor slabs, the team installed a swimming pool on top of the slab and placed sensors underneath it to conduct strength tests. Once the pool was filled with water, the engineers measured the slab's deformation. The main structure is now complete, and the team is currently focusing on interior finishing work, with delivery scheduled for December this year.
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