Article 6: The foundations arrive: installing the Krinner screws

On 25 September, the team arrives to install the Krinner screws that will serve as the foundations of the house. We chose this system because the plot is sloping, which would have complicated a conventional approach with concrete and retaining walls.

With Krinner screws, we avoid all that: less concrete, less impact on the soil, and faster to install. It is more in line with the philosophy of the project. Preliminary tests on the ground confirmed that the soil was suitable.

The screws are driven almost 3 metres into the ground with a special machine. For our house (the West house), 16 screws are needed. The second house (the East house) will have 14. All of that in two days, without a hitch. The team brings all the equipment and the machine, does the job, and it is clean.

Once they are in place, an oak sole plate is laid on the screws, and the straw floor cassettes are installed directly on top. The foundations are ready.