Facing shells have a substructure made of metal profiles or wooden battens. Depending on the system, the substructure is attached directly or via direct hangers to the solid wall behind it, in the case of a free-standing facing shell only to the lateral, upper and lower edges of the facing shell. Facing shells can be used universally: they can be used for pre-wall installations, as interior wall insulation, but also as fire protection or particularly effective acoustic reinforcement of the solid wall behind them. Facing shells are also very suitable for the renovation of old buildings, as their substructure can also completely compensate for larger unevenness of the subsoil.
Source: bauwion
