Abstract: The invention relates to a wall (11) comprising an insulating barrier (14) intended to rest against a load-bearing structure and a sealing membrane (15) which rests against the insulating barrier, the insulating barrier comprising: a support element (30) and a modular structure situated between the support element and the sealing membrane, the modular structure being fixed against the support element, the sealing membrane resting against the modular structure and being fixed to said modular structure, the modular structure comprising a first and a second sheet, the sealing membrane comprising a first zone fixed to the first sheet and a second zone fixed to the second sheet, the first sheet being connected to the second sheet by a connection that offers a degree of freedom in translation in a direction perpendicular to the thickness direction of the wall and a degree of connection in the thickness direction of the wall.

Abstract: A wall of a tank for storing at least one fluid, the wall includes a shell and at least one panel kept at a distance from the shell by at least one anchoring element holding the panel relative to the shell by defining an area between the shell and the panel, the area being at least partially filled with a filling material, the wall includes a sealing membrane bearing against the panel arranged opposite the filling material relative to the panel.