QTY 4, 9" WATERBLOCK, 25 MIL. *1-2 day production upon order * 75 FOOT ROLLS *



Waterblock Flashing Membrane is composed of premium grade SBS modified bitumen laminated between a super strong, yet very flexible, UV resistant woven polyethylene complex on the face side, and a silicon release, siliconized plastic release film on the back side.  Waterblock creates the most versatile self sealing Waterproof Flashing Membrane available.  Waterblock Flashing allows for both stick on and nail on applications.

  • Flexible Waterproof Flashing Membrane

  • Available in 25 or 40 Mil-Thickness, Composite Membrane

  • Self-Sealing

  • Self-Adhesive

  • Use around Windows, Doors, or Any Structural Opening

  • Tape Sheathing Joints