Altitude m a. Year of last renovation: Year of previous renovation: Building occupancy: Permanently occupied. Building typology: Old industrial hall. External finish: Exposed stone. Stone walls of 60 cm were insulated from the inside with 20 cm of mineral wool. The windows have been changed, now the windows are aluminum, double glazed, with the presence of adjustable sun shades. The windows have been changed, the architect's wish was to preserve the image of the industrial hall building with a discreet intervention: creation of spandrels, resumption of existing forms.
Technically, the joinery is in lacquered aluminum with thermal break, double glazing and installed in the continuity of the lining. For summer comfort, adjustable sun screens have been installed on the frames of the west and east facades, with solar control glazing in addition. The light steel roof has been preserved, however 40 cm of cellulose wadding has been added in place of the 10 cm of rock wool. The roof structure has been preserved, it is an important heritage element of this building.
The existing ground was in beaten earth, realization of a paving, a heating floor as well as a waxed concrete. Rammed earth has been replaced by simple paving, which recalls the original ground. The overall airtightness level of the building after renovation is very efficient and below the desired objectives.
Replacement of the oil boiler dating from with a 40 kW wood boiler located outside the heated volume. Installation of 2 wood pellet boilers - Boiler room in the basement outside the heated volume Emission by low temperature radiators in all rooms in place of old radiators and supply air. Heated floor on the ground floor - low temperature radiators in offices. Installation of an adiabatic system to reinforce the intervention of occupants on natural ventilation.
The principle is to evaporate softened water in the ventilation duct. This system has the advantage of low energy consumption, ease of implementation, and no noise and refrigerant nuisance. DHW production by the wood boiler - Presence of a liter tank. Attention has been paid to the acoustics of spaces with work on ceilings, floors and the installation of acoustic baffles. Lockers for recharging electric bicycle batteries available at the entrance. Halle Bouchayer Viallet.
