NON-METAL POLYMERIC BUILDING MATERIALS, NAMELY, BEAMS, COLUMNS, DECKING, FASCIAS, GIRDERS, LINTELS, PANELS, PIERS, PILASTERS, POLES, POSTS, SHEATHING, SLABS, SOFFITS, TUBES, WALL, FLOOR, CEILING AND ROOF PANELS, AND BOARD AND SHEET MATERIAL MADE OF NON-METALLIC POLYMERS USED AS WOOD, METAL AND CARDBOARD SUBSTITUTES