Microporous Polyethylene Roofing Underlayment Film from Japan
Breathable microporous PE film sheet serving as synthetic roofing underlayment, preventing moisture buildup. HTS 3921.19.0010 applies to its cellular microporous polyethylene construction as 'other plastics' sheets.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Provide tensile strength and UV resistance specs to support construction-grade durability claims
• Ensure invoice describes as 'microporous film' not 'underlayment' to prevent end-use misclassification
• Check width/length restrictions for Free (B) per US note if ≤38.1cm x 45.7cm