Glass Wool Bonded Roofing Underlayment Strip from Canada
Narrow strips of chemically bonded glass wool fabric ≤30 cm wide for use as roofing underlayment to block moisture. HTS 7019.72.15.00 covers it as qualifying glass wool (≥60% SiO2) in closed chemically bonded form per chapter note on glass wool. Excludes non-glass wools directed to 6806.
Duty Rate — Canada → United States
16%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit silica content analysis to confirm glass wool per Chapter 70 note; ensure strips are not rewound wider during import; comply with construction material flammability labeling