Bitumen Treated Wood Fiber Underfloor Panels from Japan
Underfloor heating system panels of bitumen-impregnated wood fiberboard, density 0.35-0.5 g/cm³, untreated surfaces. HTS 4411.94.00.10 classification for low-density, not worked, bitumen fiberboard. Provides thermal mass and moisture resistance.
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
• Document thermal conductivity specs for underfloor heating validation
• Ensure no foil lamination that would change classification
• Include installation instructions for customs value assessment