Cleaning system for building facades comprises roller brush connected to hose supplying cleaning liquid, brush being lowered down building by cable attached to jib and pressed against facade by counterweight

摘要

The cleaning system for building facades (1) comprises a roller brush (2) connected to a hose (13) supplying cleaning liquid. The brush is lowered down the building by a cable (6) attached to a jib (9). The brush is pressed against the facade by a counterweight (15).