A partition wall comprising a panel with a first side edge and a second side edge, a first upright and a second upright is described, wherein the panel is fastened to the first upright and to the second upright along, respectively, the first side edge and the second side edge, wherein each upright comprises a longitudinal groove configured to receive, at least partially, the first longitudinal edge or the second longitudinal edge of the panel, and wherein each side edge further comprises a fastening member configured to assume a penetration configuration for penetrating inside the groove and a retaining position for retaining the side edge of the panel inside the groove.

A sealing device can be used for at least one edge joint, which is formed between a floor, a wall, or a ceiling and an adjacent cladding of drywall having cladding. The sealing device contains a sealing profile with a base body for sealing the at least one edge joint on the cladding. The base body has a sealing web which forms a lateral contact surface for the cladding.

A sealing device can be used for at least one edge joint, which is formed between a floor, a wall, or a ceiling and an adjacent cladding of drywall having cladding. The sealing device contains a sealing profile with a base body for sealing the at least one edge joint on the cladding. The base body has a sealing web which forms a lateral contact surface for the cladding.