Bitumen-Coated Roof Underlayment Fiberboard from Japan
Fiberboard sheets impregnated with bitumen, density 0.35-0.5 g/cm³, designed as roof underlayment to provide moisture barrier in construction. Meets HTS 4411.94.00.10 criteria: not mechanically worked, not surface covered beyond impregnation, from ligneous materials. Ideal for residential and commercial roofing applications.
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
• Test for bitumen impregnation levels; exceeding surface coating thresholds may reclassify under 4411.94.50
• Declare exact density range on commercial invoice to avoid misclassification to lower or higher density subheadings
• Comply with building code certifications (e.g
• ASTM standards) for U.S. market entry