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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If a thickness of ≤5.1 mm
Thinner variants fall under the statistical suffix .10 within the same subheading for reporting purposes.
If laminated with glass mesh for reinforcement
Float glass laminates classify under Chapter 70, changing from primary wood product.
If primarily plastic-faced rather than wood-based
Polymer-dominated composites shift to Chapter 39 plastics.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Label panels clearly as 'fiberboard' not 'insulation' to avoid confusion with Chapter 68 mineral wool products
• Maintain records of production process showing mechanical wood processing origin per subheading notes
• Test for VOC emissions if marketed for interior use to meet CARB/EPA standards
Related Products 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 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.