Hemlock Wood Wool Insulation from Mexico
Compressed hemlock excelsior panels for loose-fill wall insulation (R-value 2.2 per inch). HTS 4405.00.00.00 classification for cellulosic wood wool insulation. Borate treatment for fire/smoldering resistance.
Duty Rate — Mexico → United States
13.2%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Thermal conductivity certificates (K-factor) for building code approval
• Borate content analysis (<15%) to maintain wood wool status
• Settled density specs (2.5-3.5 lb/cu.ft.) for blower installation