REDOING OF ROOF COVERING IN “POSSAGNO” TILES, WITH WATERPROOF LAYER CONSISTING OF ADHESIVE MEMBRANE SURFACED WITH SLATE CHIPPINGS, AFTER REDOING THE UNDERTILE LAYER. REPLACEMENT OF THE 6/10 COPPER SHEET ELEMENTS AND THE CLADDING, AGAIN IN COPPER SHEET, OF THE BUILDING UNITS PROTRUDING FROM THE ROOF.