Breathable PP Housewrap Sheeting
Microporous polypropylene film for building moisture barriers (cast, not woven). 3920.20.00 as noncellular propylene sheet despite permeability.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If prefabricated building components
Mounted or profiled sheets become Chapter 39 building accessories.
If nonwoven housewrap
True PP nonwovens for construction are Chapter 56 textiles.
If styrene-acrylonitrile housewrap
Alternative polymers have dedicated subheadings.
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Import Tips & Compliance
• Prove microporosity via process, not woven structure
• WVTR test data supports but doesn't change heading
• Rolls only; cut panels risk 3925 building articles
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