USG Securock Glass Mineral Wool Insulation from Canada
Fire-resistant glass mineral wool boards for shaft walls and plenums, tested to ASTM E84. Fits HTS 7019.80.10 as qualifying insulation product.
Duty Rate — Canada → United States
14.9%
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
• Include UL classification numbers for fire-rated assemblies
• Board thickness over 2 inches may trigger structural panel reviews