PVC Foam/Polypropylene Roofing Underlayment from Canada
Cellular PVC sheet laminated to spunbond polypropylene for roofing membrane substrate. HTS 3921.12.1950 covers these other combined cellular sheets. Moisture vapor transmission with physical protection.
Duty Rate — Canada → United States
15.3%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide ASTM test results for water resistance and vapor permeability
• Document manufacturing process showing PVC/textile inseparability
• Avoid bulk packaging declaration risking heading 3923 plastic articles