19 Non-metallic building materials, namely, mineral-based cementitious materials in the nature of portland, hydraulic, white, masonry, plastic, stucco, and oil well cements; Non-metallic building materials in the nature of mineral-based cementitious materials and pozzolanic materials, namely, blast furnace slag, coal clinker, fly ash, cement mixes and patches, concrete, mortar, stone, aggregate, sand, mosaic tiles, lime, plaster, gypsum, gravel, brick, roofing tiles, floor tiles, masonry units and segmental retaining wall systems in the nature of stone for building, pavers, beams, partitions, barriers, modules, panels, and columns; felt paper in the nature of nonwoven textile fabrics for use in construction as a housewrap; waterproofing plastic membranes for roofing; rigid pipes not of metal; asphalt, pitch and bitumen; transportable buildings, not of metal; and monuments, not of metal