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%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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