Asphalt-Impregnated Building Paper
Asphalt-impregnated building paper, often called #15 or #30 felt, is tar-saturated paper in rolls for construction sheathing and weather barriers. It qualifies for HTS 4811.10.21.00 as 'other' asphalted paper in rolls, impregnated to provide moisture resistance, outside the scope of 4803, 4809, or 4810.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If coated with gummed or adhesive substances instead
Gummed paper shifts to 4811.60, separate from bituminized types.
If textile fabric coated with bitumen, paper-faced
Primarily textile-based products with asphalt coating go to Chapter 59.
If pure bitumen/tar without paper substrate
Unimpregnated asphalt or tar is classified as petroleum coke/bitumen in Chapter 27.
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Import Tips & Compliance
• Include technical data sheets showing asphalt saturation and basis weight >115 g/m² to match paperboard specs
• Declare as 'in rolls' on entry; cut sheets risk reclass to 4823 if further worked
Related Products under HTS 4811.10.21.00
Tarred Asphalt Roofing Felt
Tarred asphalt roofing felt is a heavy-duty paper impregnated with asphalt or tar, supplied in rolls for use as an underlayment in roofing applications. It falls under HTS 4811.10.21.00 as 'other' tarred or bituminized paper in rolls, distinct from goods in headings 4803, 4809, or 4810, due to its surface impregnation with bituminous substances for weatherproofing.
Bituminized Waterproofing Paper Roll
Bituminized waterproofing paper is asphalt-impregnated kraft paper in rolls, used for damp-proofing foundations and walls. Classified under HTS 4811.10.21.00 for 'other' tarred, bituminized, or asphalted paperboard in rolls or sheets, as it features surface impregnation excluding it from headings 4803, 4809, or 4810.
Tarred Kraft Envelope Liner Paper
Tarred kraft envelope liner paper is bituminized kraft in sheets or rolls, used as waterproof liners inside heavy-duty mailing envelopes. Under HTS 4811.10.21.00 for 'other' tarred paper, it features surface bituminization for grease/moisture resistance, not covered by 4803, 4809, or 4810.
Bitumen-Coated Damp-Proof Course Sheet
Bitumen-coated damp-proof course sheets are asphalted paperboard sheets used in masonry to prevent rising damp in walls. HTS 4811.10.21.00 covers these as 'other' bituminized paperboard in rectangular sheets, impregnated for impermeability, excluding 4803/4809/4810 goods.
Asphalt Saturated #30 Roofing Paper
#30 asphalt saturated roofing paper is medium-weight tar-impregnated felt in rolls, standard for shingle underlayment. It is classified in HTS 4811.10.21.00 as 'other' asphalted paper, featuring full bitumen saturation for roofing durability, not in 4803, 4809, or 4810.
Tar-Impregnated Insulation Facing Paper
Tar-impregnated insulation facing paper is bituminized kraft foil-faced or plain paper in rolls for vapor barriers on fiberglass batts. Falls under HTS 4811.10.21.00 for 'other' tarred paper in rolls, with surface tar for moisture protection, outside 4803/4809/4810.