The slat facade, System 694, from MLL Hamburg, is a facade system made of aluminium with a free ventilation cross section of 39%. The system 694 is equipped with a Z-slat of the medium series of type 090. Fastening to a facade occurs via the Retaining rail 004. The slats are fastened with the MLL clip system and are also removable afterwards for repair work on on the facade or similar purposes.