Synthetic roofing underlayment.

The product to be
imported is described as synthetic roofing underlayment. Imported in master
rolls with widths ranging from 36-60 inches, this underlayment is comprised of
a polypropylene woven fabric coated with a polypropylene film on one side and
an adhesive layer with a protective release liner on the other.

 

Subheading HS: 3919.90

 

 

Source: Source: https://rulings.cbp.gov/index.asp, March, 15, 2017 (N283552)