19 BITUMAN, ASPHALT, ASPHALT CEMENT, PLASTIC PLATES AND WEBS FOR ROOFING PURPOSES; ROOF AND SEALING WEBS IN FORM OF TAPES FOR ROOFING PURPOSES, ROOF SHINGLES, INCLUDING BITUMINOUS SHINGLES AND THOSE BASED ON CARRIERS OF ROUGH FELTS, GLASS AND PLASTIC FLEECES, TISSUES OF INORGANIC, ORGANIC AND METAL STARTING MATERIALS; FORMING PART OF ROOF SHINGLES, CORRUGATED ROOF WEBS, WELDABLE WEBS, COMPENSATING WEBS, PLASTERBOARD PANELS, ROOF CEMENT, ROOF STRUCTURAL MEMBERS, IN PARTICULAR VENTS, ROOF EXHAUST OUTLETS, ROOF INLETS, SEALING COLLARS, LIGHT DOMES, ROOF EDGING MEMBERS