Non-metal building materials, namely, non-metal roofing and non-metal roof coverings, non-metal roof systems comprising non-metal roofing tiles, roof battens, ridge cap tiles and barge tiles, not of metal

Non-metallic building materials, namely, roofing and roof coverings, not of metal; non-metallic roof systems comprising non-metal roof tiles, roof battens, ridge cap tiles and barge tiles, rafters and gutters; all of the foregoing not for stadiums