Impregnated with bitumen
Fiberboard of wood or other ligneous materials, whether or not bonded with resins or other organic substances: > Other: > Of a density not exceeding 0.5 g/cm3 > Other: > Other: > Impregnated with bitumen
Duty Rate (from China)
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
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 4411.94.00.70
Bitumen Impregnated Low-Density Fiberboard Roofing Underlayment
Low-density fiberboard (density ≤0.5 g/cm³) impregnated with bitumen to provide waterproofing and protection against moisture. Used primarily as roofing underlayment beneath shingles or tiles. Classified under HTS 4411.94.00.70 due to its fiberboard composition, low density, and bitumen impregnation for weather resistance.
Bitumen Coated MDF Insulation Board for Wall Sheathing
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.
Waterproof Bitumen Impregnated Particleboard for Subflooring
Low-density fiberboard made from wood particles, impregnated with bitumen for moisture protection in flooring underlayment. Ideal for bathrooms and basements where dampness is common. HTS 4411.94.00.70 applies to its ligneous material composition, low density, and bitumen treatment.
Bitumen Sealed Fiberboard Soundproofing Panels
Low-density fiberboard panels impregnated with bitumen to dampen sound transmission in recording studios and home theaters. The bitumen enhances acoustic absorption while preventing warping. Classified in 4411.94.00.70 for density and specific impregnation.
Bitumen Impregnated Hardboard for Exterior Siding Backer
Low-density hardboard variant impregnated with bitumen to serve as weather-resistant backing for vinyl siding installations. Provides dimensional stability in humid climates. HTS 4411.94.00.70 due to fiberboard nature, density spec, and bitumen processing.
Marine-Grade Bitumen Fiberboard for Boat Deck Underlay
Low-density fiberboard specially impregnated with bitumen for saltwater resistance in marine decking applications. Used under non-skid surfaces on boats and docks. Fits 4411.94.00.70 as ligneous fiberboard with density ≤0.5 g/cm³ and bitumen treatment.
Bitumen Treated Fiberboard Vapor Barrier Sheets
Flexible low-density fiberboard sheets impregnated with bitumen to control moisture vapor transmission in building envelopes. Installed in crawl spaces and attics. 4411.94.00.70 classification reflects fiberboard base, low density, and specific impregnation.