UN®  membrane

The Waterproof UN® Membrane is a rigid unidirectional nonwoven fabric composed by polyester fibers that provide high resistance to moisture, tension, and great compatibility with waterproofing substances in cold applications.


  • Great resistance to moisture
  • Great compatibility with waterproofing materials
  • Designed to allow construction of waterproofing barriers
  • Typical unidirectional resistance
  • Avoids formation of cracks on the waterproofing film
  • Extends lifespan of waterproofing
  • Cost effective


  • Waterproofing membrane that is compatible with cold-application products