Flexible dual skin wall and device for tensioning a dual skin flexible wall

A device for tensioning a dual-skin flexible wall capable of interaction with at least one rigid mount, the device being mounted at the opposite edges of two skins to be retained by the rigid mount. The device includes a cord designed to interact with a groove formed in the rigid mount, and an inflatable bead capable of spacing the two skins away from and parallel to each other. Once inflated, the inflatable bead has a substantially cylindrical shape and remains confined outside the volume occupied by the rigid mount.