OSB Radiant Barrier Sheathing from Japan
OSB panels with factory-applied reflective foil facing to reduce heat transfer in roof applications. Core remains standard oriented strand board per definition. Basic OSB sheet classified under HTS 4410.12.00 despite thin functional overlay.
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
• Document foil as 'minor surface treatment' <5% weight to maintain OSB classification vs composite panels
• Provide radiant barrier performance data (emittance ≤0.05) but emphasize OSB core construction in rulings
• Ensure foil reflectivity certification doesn't imply 'finished article' status triggering Chapter 39 plastics heading