Moistop neXT®

Short Product Description

Moistop neXT®

Extreme weather conditions on the jobsite call for a flashing product that can withstand a higher level of abuse, including high winds and heavy rains. These extreme conditions also require greater protection against water intrusion and moisture – as well as the problems they cause. That is why the Fortifiber Building Systems Group has developed Moistop® neXT.

Moistop neXT is an ultra-high performance, mechanically attached flashing solution developed with and for builders who need a product that can withstand these extreme weather conditions. Comprised of two layers of high performance polyolefin film, laminated with a remarkably durable core of fiberglass scrim reinforcement, the product retains its shape in heavy winds – resisting the shear forces that cause rips and tears.

Built upon the legacy of Moistop Flashing, the industry’s most popular flashing product, Moistop neXT’s robust construction provides a heavy duty barrier against rain-driven water intrusion – both on the jobsite and in the finished construction.

Part of the Fortifiber® 1-2-3 moisture control system, Moistop® PF is designed to withstand the rigors of the jobsite and the elements, and is backed by an industry-leading 15-year warranty.


  • For extreme weather conditions
  • Ultra-high performance water barrier
  • Ideal for metal, wood, and vinyl windows
  • Highly resistant to rips and tears
  • Mold resistant
  • Part of a complete moisture control system


  • 6" x 200'
  • 9" x 200'
  • 12" x 200'

Related products to qualify for the 15 year warranty