The house of the charmilles is a renovated stone house, with an entirely metallic heightening. The structure of the heightening is placed intramural on six micropiles, the stone facade is therefore free of any additional weight. Talence being a city built for the most part on very plastic clays, a heightening is only possible with a soil study, and a structure study for implantation. The heightening has therefore, structurally, been completely detached from the existing.

The outside part of the ground floor is rehabilitated in the old style : wood joinery and restaurated stone. A small town garden completes the set, with its steel bicycle shelter. The interior has an industrial style : black waxed concrete on the floor, the framework of the visible heightening. The floor of the second floor is visible in the living area.

The heightening is all metal: steel and aluminum. The aluminum joinery is inserted between cladding trays supporting the steel facade. The steel shutters protect these joinery.

The quality of the insulation is perfect: the insulation passing through the slab, 25cm plus 10cm on the upstairs frontage, the house goes to A for the energy diagnosis, which is very rare for old ones.

A little nod is made to Mondrian with the colors of the storage wall and the kitchen / staircase. The storage wall (with wardrobe, library, kitchen) hides full height doors separating the living area from the master suite and the pantry. The staircase is a central element of the house, it separates the spaces and releases the kitchen space which finds place below. The staircase is suspended from the upstairs hopper by its all-steel guardrail, the steps are folded, and the whole is powder-coated.

All steel and stone project!

 

Sustainable development approach of the project owner

The client wanted to go further than thermal regulations, and have as little loss as possible.

Architectural description

The house of the Charmilles was originally a freestone and brick house. The heritage character has been preserved by keeping and highlighting the freestone, and by reinstalling wood joinery, but of quality.

The heightening requested by the client, in addition to the issue of the basement, also had to be as efficient as possible thermally. The insulation, inside the ground floor, therefore runs on the floor which is in metal framework and suddenly in distributed insulation! No thermal bridge.

The insulation of the roof was made by sandwich panels of 120 mm (to avoid a dew point on the underside), and an addition of insulation while crawling.

The client wanted an industrial spirit, the choice of the heightening therefore fell on a steel structure, with metal cladding.