Bitumen Impregnated Medium Density Fiberboard Roof Underlayment
Bitumen-impregnated medium-density fiberboard (MDF) roof underlayment, with a density between 0.35 and 0.5 g/cm³, is treated with bitumen to enhance water resistance and durability. This product is not mechanically worked or surface-covered, qualifying under tariff item 4411.94.00. It is used as roof underlayment in construction.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the density exceeds 0.5 g/cm³
Higher-density fiberboard is classified under a different subheading.
If the product is medium-density fiberboard with density above 0.5 g/cm³
MDF with higher density falls under a specific subheading.
If the product is primarily a bituminous roofing membrane
Bituminous roofing products are classified in Chapter 68.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the density is within 0.35–0.5 g/cm³ and include this in the customs declaration
• Ensure the product is not surface-covered or mechanically worked to avoid reclassification
• Verify that the underlayment meets Canadian roofing standards for moisture protection
Related Products under Tariff item 4411.94.00
Acoustic Bitumen-Impregnated Fiberboard Panels
Acoustic bitumen-impregnated fiberboard panels designed for sound absorption, with a controlled density of 0.35–0.5 g/cm³. These panels are not mechanically worked or surface-covered, and the bitumen treatment enhances their acoustic and moisture-resistant properties. They qualify under tariff item 4411.94.00 as low-density fiberboard of wood or other ligneous materials.
Acoustic MDF Panel 12mm
Acoustic MDF panels with a density of 0.48 g/cm³, perforated for sound control in studios and theaters. Made from wood fibers bonded with resins, they fall under tariff item 4411.94.00 as fibreboard of a density not exceeding 0.5 g/cm³.
Bagasse Fiberboard 7mm
Bagasse fibreboard with a density of 0.44 g/cm³, made from sugarcane bagasse fibres for furniture and packaging. As a ligneous material, it qualifies as fibreboard under tariff item 4411.94.00.
Bagasse Fiberboard Wall Sheathing
Bagasse fiberboard wall sheathing is made from sugarcane bagasse, a ligneous agricultural residue, with a density of 0.35–0.5 g/cm³, used for exterior wall sheathing. It falls under tariff item 4411.94.00 as fiberboard of other ligneous materials, offering an eco-friendly alternative to wood-based boards.
Bamboo Fiberboard Panel 8mm
Bamboo fibreboard panels with a density of 0.47 g/cm³, made from bamboo fibres for decorative wall panels. Per Chapter 44 note 6, bamboo is treated as wood, so it falls under tariff item 4411.94.00.
Bitumen-Coated Roof Underlayment Fiberboard
Bitumen-coated roof underlayment fiberboard sheets, impregnated with bitumen and having a density of 0.35–0.5 g/cm³, serve as a moisture barrier in construction. These sheets are not mechanically worked or surface-covered, aligning with the tariff item's scope for low-density fiberboard. The bitumen treatment provides water resistance for roofing applications.