We have made two detached houses with the MOASTEEL construction system in complete metal structure with double insulation. These two houses are built with the techno-pile system in a soil consisting of a four-meter thick silt on the water table of a stream.

The structure is prefabricated in the factory, thus reducing the means of lifting and transport compared to a traditional house. From the perspective of future regulations, this type of prefabrication is of undeniable interest in terms of the carbon footprint during the construction phase. Up to ten times lighter, the steel structure also makes it possible to build this type of house in places with complicated basements.

The construction system can be easily industrialized, giving the possibility of quickly producing large series of houses at an excellent quality / price ratio. A 30-year guarantee exists for the facade cladding.

In terms of energy performance, these low-consumption houses were built in order to limit the contribution required for heating to € 200 each year. This is achieved thanks to a double layer of GR32 glass wool insulation with a thickness of 100 mm as well as a BA13 plate.

The characteristics of the MOASTEEL construction system:

• metallic structure which can be calculated according to the seismic and anticyclonic regulations
• foundations without concrete with metal floor on metal piles
• recyclable materials
• very low carbon footprint: factory prefabricated materials and dry solution construction method fully assembled by bolting and use of self-drilling and self-tapping screws

Sustainable development approach of the project owner

The client wanted to build two houses with a new ecological technology in accordance with his political convictions and his way of life.

The technique adopted with the system of metal piles screwed into the ground also made it possible to avoid the destruction of the ground in depth, by limiting the intervention of VRD to a simple stripping of the topsoil.

Architectural description

Due to the nature of the materials used, a construction of contemporary architecture was essential for this project.

The pre-painted galvanized steel insulating panels with hidden fixings are placed directly on the metal frame and give the finished appearance of the construction.

There is no second intervention at the end of the job and the dry solution installation method keeps a job site clean throughout its duration, generating less waste and consuming little energy and no water.