Fiberglass Batts Insulation for Walls from Japan
Pre-cut rectangular fiberglass batts designed for installation between wall studs in residential construction. These meet HTS 7019.80.10.10 as glass wool insulation products in batt form, with silica content over 60% qualifying as glass wool per chapter notes. They provide thermal and acoustic insulation without structural support.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify silica (SiO2) content exceeds 60% via lab certification to confirm glass wool status per chapter note
• Include R-value documentation and fire ratings (ASTM E84) for customs clearance and building code compliance
• Avoid classifying as mineral wool under 6806 if alkaline oxides exceed limits; request binding ruling if borderline