Patent ID: 7162845

Claim:
A method for building a wall using a formwork including two formwork walls placed face to face and connected by connecting elements articulatably joined to the formwork walls by stiffeners attached to the formwork walls, the connecting elements allowing the walls to be kept either spaced apart to define an interval intended to receive a filler such as concrete or folded for storage and transport, comprising the steps of: unfolding the formwork walls; and filling the interval between the unfold formwork walls with a filler; wherein either, before the setting of the filler, a casing is applied on the external face of at least one formwork wall in such a way to coat the formwork wall, or at least one formwork wall is attached to but spaced from the stiffeners and the connecting elements, and a filler material, such as concrete, is poured so as to coat the stiffeners and the connecting elements with a casing adjacent to the formwork wall, the stiffeners and the connecting elements forming thus a reinforcement inside the wall, the stiffeners and the connecting elements being submerged in the wall and covered by said casing.