Bitumen Coated MDF Insulation Board for Wall Sheathing from Canada
Medium-low density fiberboard impregnated with bitumen for enhanced water resistance in exterior wall applications. Provides thermal insulation and structural backing in construction. Falls under 4411.94.00.70 as low-density fiberboard specifically treated with bitumen.
Duty Rate — Canada → 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
• Document bitumen impregnation process and percentage to distinguish from surface-coated products under different subheadings
• Ensure formaldehyde emission compliance (EPA TSCA Title VI) with test reports for fiberboard imports
• Check for anti-dumping duties if sourced from specific Asian manufacturers previously subject to investigations