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Rockwool Comfortbatt Fire-Resistant Insulation from Germany

Stone wool batts (classified as glass wool equivalent) with R-23 rating for stone wool fire-rated walls, offering superior sound absorption. HTS 7019.80.10 applies as it meets fused silica/mineral wool insulation criteria in Chapter 70.

Duty Rate — Germany → United States

10%

Rate breakdown

9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%

Import Tips

Submit certificates verifying non-combustible properties and fiber analysis for fire-rated claims

Package in consumer-ready retail units to qualify as insulation products, not bulk fibers

Watch for reclassification if fibers exceed 6mm average diameter threshold for wool definition