The assembly of these panels, by interlocking, screwing and filling with cellulose, straw, wool, earth, concrete or any other material, allows the assembly, the locking, the insulation and the finishing of walls, partitions, floors, claddings and roofs of houses, of Simple and flexible way. It is the shifting of the panels and the screwing of the « A » zones which guarantees the rigidity of the construction without using any framing. It’s a simple and secure concept.