Mineral Wool R-19 Wall Insulation Batts 23-inch from Canada
R-19 rated mineral wool batts, 23 inches wide (58.4 cm but friction-fit exceeds 61 cm effective), for standard 2x6 wall cavities in energy-efficient homes. HTS 6806.10.00.40 covers these uncompressed slag/rock wool batts for heat-insulating applications, excluding coated textiles or chapter 69 ceramics. High-density fibers resist settling over time.
Duty Rate — Canada → United States
13.9%
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
• Submit ASTM C665 compliance certificates proving thermal performance and corrosion resistance for favorable duty treatment
• Declare density (e.g
• 2.5 pcf) accurately; lightweight batts risk scrutiny as 'expanded' under 6806.20