Natural Blue Roofing Slate Tiles

Thin, durable tiles cut from natural blue-gray slate quarried in regions like Spain or Wales, specifically shaped and sized for overlapping installation on rooftops. Classified under HTS 6803.00.10.00 as roofing slate, which covers worked slate products designed primarily for weatherproof roofing applications. The natural cleavage of slate allows for thin, strong tiles resistant to cracking and weathering.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.3%+35.0%38.3%
🇲🇽Mexico3.3%+10.0%13.3%
🇨🇦Canada3.3%+10.0%13.3%
🇩🇪Germany3.3%+10.0%13.3%
🇯🇵Japan3.3%+10.0%13.3%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

6802.23.00.00Higher: 38.7% vs 38.3%

If used for exterior wall cladding or facades

Slate tiles for building walls or monuments fall under worked monumental or building stone in heading 6802, not specifically roofing.

6803.00.50.00Lower: 35% vs 38.3%

If in the form of agglomerated slate

Agglomerated slate (reconstituted from slate particles) is classified separately from natural worked slate under 6803.00.50.

6907.40Lower: 18.5% vs 38.3%

If fired or glazed for ceramic-like roofing

Slate processed with heat treatment resembling ceramic roof tiles moves to Chapter 69 for unglazed ceramic flags and paving.

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Import Tips & Compliance

• Verify the slate is naturally quarried and worked solely for roofing to avoid reclassification as building stone under 6802.23

• Provide geological certification or quarry origin documents to confirm it meets 'slate' definition and excludes agglomerated products

• Check for smooth splitting along cleavage planes during customs inspection to prevent disputes over 'worked monumental stone'