Abstract: The present invention relates to an automatic cleaning apparatus (1) for cleaning facades on multi-story buildings. The apparatus comprises a rotating brush (11) arranged rotatable about its longitudinal axis, a drive mechanism (16) for rotating the brush, a container (18) for housing a cleaning fluid, and a fluid feeding device adapted to feed the rotating brush with cleaning fluid from the container by means of capillarity forces. The apparatus is designed to engage to steering guides (4) provided on the facade. The apparatus is designed so that a downward movement of the apparatus is solely powered by gravity forces acting on the apparatus.

Abstract: The present invention relates to a method for mounting facade elements (12, 12b-c) on a multi-story building by means of a profile system comprising a first type of vertical profile (1a-d) having a slot extending along the longitudinal axis of the profile, and an inner part of the slot being designed to receive an edge of a first facade element and an outer part of the slot being designed to receive and support a second type of vertical profile, provided with a groove extending along the longitudinal axis of the profile and designed to receive and support an edge of a second facade element.