Roof Ventilation Microporous PP Ridge Film from Germany
Microporous polypropylene film for roof ridge vents allowing attic moisture escape. HTS 3921.19.0010 classification for cellular microporous PP sheets in construction.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• ASTM E2178-13 net free area testing validates ventilation performance
• Rolls for field fabrication remain plastic film; preformed vents become 3925.90
• UV stabilizer content disclosure for 20+ year warranties