Architectural elements, namely, non-metal roof lights; Building materials, namely, cellular PVC trim; Building materials, namely, composite panels composed primarily of nonmetal materials; Building materials, namely, plastic pipe supports; Cement mortar pipes; Ceramic enamel tiles; Ceramic roofing tiles; Ceramic tiles for flooring and facing; Ceramic tiles for flooring and lining; Ceramic tiles for tile floors and coverings; Chemically treated wood, namely, wood beams, wood boards, wood joists, wood poles, wood posts, wood rafters, wood siding, wooden beams, wooden poles for electric power lines, and wooden railings, all for aquatic uses; Chemically treated wood, namely, wood beams, wood boards, wood joists, wood rafters, wood siding, wood tile floors and flooring, wood trim, wooden beams, wooden flooring, wooden railings, and wooden wainscoting, all of the above containing a fire retardant chemical; Clay pipes and conduits; Clay roofing tiles; Earthenware tiles; Fireproof tiles; Non-metal floor tiles; Non-metal roofing tiles; Non-metal sewer pipes; Non-metal tiles; Non-metal water pipes; Rigid pipes of polypropylene for the supply of drinking water and heating and air conditioning systems in houses, office buildings and industrial buildings; Tiles of clay, glass, gypsum, ceramic or earthenware; Wall tiles