E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
E04G3/34—Mobile scaffolds; Scaffolds with mobile platforms characterised by supporting structures provided on the roofs