6 Metallized barriers in the nature of sheathing boards, underlayment and panels for roofs, ceilings and walls.
17 Building insulation for use in roofs, ceilings, walls and floors; thermal mass panels consisting of panels or sheathing boards that absorb and release thermal energy for use in roofs, ceilings, walls and floors; fire resistant membranes consisting of panels or sheathing boards for use in roofs, ceilings walls and floors; weatherization membranes and vapor barriers.
19 Non-metal roofing materials, namely, underlayment, shingles, and roofing panels; structural and nonstructural wall sheathing panels and boards, not of metal; complete roofing systems consisting of sheathing boards, underlayment and non-metal shingles.
