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Through Wall Flashing

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Product Description
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WaterStop™ Through Wall Flashing is a extremely durable peel and stick membrane that aggressively bonds to wood, concrete or block in harsh weather conditions. Designed to be 100% waterproof and creates an impervious barrier for water to exit to the face of the exterior finish. This easy to form membrane works well with cants, bump-outs or other features. Manufactured with MicroGrab™ Adhesive Technology this tape can can withstand the expansion and contraction of manor walls.
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Basic Uses
This waterproof peel and stick flashing tape can be used for masonry through wall flashing or where non-exposed waterproofing is needed.

Diverts Moisture from Masonry Walls

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Through-wall flashing is used to divert moisture, which has entered the wall, to the outside, before it can cause damage. This flashing method is considered the most effective method of preventing leaks.
  • For Residential or Commercial Use
  • Peel and Stick
  • 100% Air and Moisture Barrier
  • Twice as Strong as Other Tapes
  • Seals around nails
  • Adheres at - 30º F
  • Stays Elastic, Does Not Oxidize or Dry Out
  • No Drool or Staining
  • Widest Range of Installation Temperatures
  • Available in 3 Widths
  • Workable for Precise Placement
  • Thin Design for Better Formability
  • No Heated Storage Required
  • Conforms to Surfaces Irregularities
  • Compatible with Most Building Materials
  • Helps Stop Mold and Mildew
  • No VOCs and Environmentally Friendly
  • Micro-Grab Adhesive Technology
  • 5 year Shelf Life
  • Limited Lifetime Warranty
  • Made in USA
Available Sizes


12" x 75'

18" x 75'

24" x 75'













Customizable Sizes Available

We believe that Xtreme Weather Flashing tape is the best on the market. We believe it is better than all others flashing tapes including 3M 8067, DuPont Tyvek Tape, Nashua Select, Protecto Super Stick, Grace Vycor Plus, Protecto Wrap Bt-25XI, Henkel OSI TeQ Flash, Windowwrap PSX-20, MFM WindowWrap PowerBond, Henry Blueskin WB, barricade Ulti-Flash, Mpn 45804, Nashua Optiflash, Polyguard, York RESHS09, Shadowlastic, Baricade, Aquaseal Hyband, Adchem DrainFlash and Typar Flashing.