The slat facade, System 514, from MLL Hamburg, is a facade system made of aluminium with a free ventilation cross section of 39%. The system 514 is equipped with a sliding-water safe, Z-slat of the light series of type 010. 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.