Bitumen-Coated Wood Fiberboard Roofing Underlayment from Mexico
Low-density fiberboard sheets impregnated with bitumen, designed as underlayment beneath roofing materials to prevent moisture penetration. Classified under HTS 4411.94.0050 due to its wood fiber composition, density not exceeding 0.5 g/cm³, and lack of mechanical working or surface coverings other than bitumen. This makes it ideal for residential and commercial roofing applications.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide lab test reports confirming bitumen impregnation levels and fiberboard density; check for VOC emissions compliance under EPA rules
• Avoid shipping with mechanically edged panels to prevent mixed classification
• Pitfall: insufficient proof of 'not surface-covered' status