Classification Information
Plastic building boards; Waterproof membrane for use as a floor underlayment; Waterproofing membranes for roofing, floors and walls; Non-metal trenches for use in construction of basement waterproofing system; Non-metal windows and doors; Sewer pipes, not of metal; Horse stall kick walls, not of metal; Asphalt roofing paper; Cat doors not of metal; Geotextiles; Shutters, not of metal; Handrails, not of metal, for swimming pools; Wall panels not of metal; Dog doors not of metal; Flooring underlayments
Nonmetallic Building Materials