Sourcing bitumen waterproofing paper from China
Bitumen-coated waterproofing paper from China carries 0% UK duty across the relevant tariff line. Confirm applicable timber due diligence requirements with the relevant authority when first placing virgin-fibre paper on the Great Britain market. Specify the paper base, coating and intended use before ordering. Cambridge China Bridge sources bitumen-coated waterproofing paper.
Duty on bitumen-coated waterproofing paper
Heading 4811 covers coated, impregnated and other treated paper materials in rolls or rectangular sheets, subject to its stated exclusions. Bitumen-coated waterproofing paper falls within the line for tarred, bituminised or asphalted paper and paperboard, 4811 10 00 00. The table shows purchase forms within that same tariff line.
Read from the UK Trade Tariff on 30 September 2026, the supplied data records 0% duty for goods from China throughout this heading, including this waterproofing-paper line. It records no anti-dumping or countervailing measure, suspension or attached import control for the line. Import VAT is normally 20%; see UK import duty and VAT.
Confirm the commodity code using the substrate, coating composition and supplied form. A supplier's description of roofing felt or waterproofing membrane alone is insufficient to identify paper of this line. For the wider heading, see our VCI and treated-paper guide.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Bitumen-coated waterproofing paper in rolls | 4811 10 00 00 | 0% | None |
Specify the paper base and bitumen coating
State the intended application, paper fibre mix, base-paper grammage, finished grammage, thickness and tolerances. Identify whether the paper is coated or impregnated, the coating composition, surface finish and any release layer. Specify roll width, length, core dimensions, winding direction and splice identification, or sheet dimensions and flatness.
Agree water-penetration, tear and flexibility tests suited to the intended application, with written acceptance criteria and an approved sample. Check the proposed overlaps, adhesives and substrate using a sample assembly. Request storage and installation instructions, and record which face is intended to contact the substrate.
For virgin-fibre paper first placed on the Great Britain market, confirm applicable UK Timber Regulations due diligence requirements with the relevant authority. Obtain the pulp source, species and country of harvest; establish the virgin and recycled proportions. For construction use, ask your compliance adviser to identify the applicable product standard and performance documentation. Where CE marking has been legitimately affixed, construction products can continue to be supplied to the Great Britain market.
Worked duty example
Illustrative example, not a quote: Illustrative order: 12 tonnes of bitumen-coated waterproofing paper in rolls under 4811 10 00 00, invoiced at £14,000 free on board, with £1,800 of freight and insurance to the UK. The customs value is £15,800. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £15,800, so it is £3,160. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.
Inspection checklist
Coating: check samples across the width and along the roll for bare patches, pinholes, streaks and coating transfer; compare finished grammage and thickness with the agreed specification.
Performance: repeat the agreed water-penetration, tear and flexibility checks on batch samples; inspect trial overlaps and adhesive compatibility against the approved assembly.
Rolls and sheets: check dimensions, cores, winding and splice identification; unroll samples to detect sticking, tearing and cracked coating, and inspect sheets for curl.
Arrival and records: check wrapping, crushed edges, wet paper and batch labels; match the delivered batch to test reports, fibre-source records and the approved sample. See quality inspection explained.
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What goes wrong
A dark surface can hide uneven coating or pinholes. Paper that looks satisfactory when dry may tear during installation or leak at overlaps. Rolls can stick together during storage, damaging the coating when unwound; crushed cores and wet edges can make otherwise usable material difficult to lay.
Another failure is accepting a generic waterproofing claim without defining the application. Agree the test method and acceptance criteria before production, test an assembly rather than relying only on a loose sheet, and retain an approved sample for comparison with the shipment.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For repeat volumes, see container programmes.
Frequently asked questions
What is the UK import duty on bitumen-coated waterproofing paper from China?
The supplied tariff data, read on 30 September 2026, records 0% duty under 4811 10 00 00, with no anti-dumping or countervailing measure. Import VAT is normally 20%.
Do UK timber rules apply to bitumen-coated paper?
Virgin-fibre paper is in scope. Confirm with the relevant authority what timber due diligence applies to the business first placing it on the Great Britain market. Obtain fibre-source information and distinguish virgin from recycled content.
Can I use bitumen-coated paper as a roofing membrane?
Assess the exact product for the proposed roof assembly. Ask for application-specific performance evidence, installation instructions and compatible overlap details before approving it.
What should I check when waterproofing paper arrives?
Check coating continuity, dimensions, wet or crushed edges and batch records. Unroll samples for sticking and coating damage, then repeat the agreed water-penetration and flexibility checks.