The slat facade, System 776XL, from MLL Hamburg, is a facade system made of aluminium with a free ventilation cross section of 59%. The System 776XL is equipped with a Z-slat of the heavy series of type 070XL. Fastening to a facade occurs via the supporting pillar 006. The slats are fastened with the MLL clip system and are also removable afterwards for repair work on on the facade or similar purposes.