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800-323-2999
Price: $30.36...9" x 75' Roll

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Fortifiber 9" x 75' FortiFlash® Waterproof Flashing Membrane is engineered to deliver lasting protection against water intrusion in the most demanding environmental conditions. It is the premium self-adhesive waterproof flashing membrane for windows. It is also ideally suited for flashing non-roofing horizontal conditions such as pot shelves, parapets, sill pans and recessed windows. Its strong adhesion makes it a perfect choice for sealing around common through-wall penetrations such as hose bibs, vents, electrical boxes and exterior lights. Yet, its price makes FortiFlash® the price/performance solution for the most challenging construction requirements.

Reinforced by a strong cross-laminated high-density polyethylene film, FortiFlash can be installed around protrusions and into the tightest corners without delaminating or tearing. Its self-sealing rubberized asphalt core stays in place in the most punishing weather conditions. Available in 25 and 40 mil versions, there is a FortiFlash designed to fit your needs.

  • Maximum water and leak protection.
  • Self-Adhesive installation.
  • 25 mil thickness (40 mil available as a special order).
  • Self-Sealing core.
  • Part of a complete moisture control system.
Explanation of Product Availability Terms

  • Stock Item: This is a product we normally have available for immediate shipment. If we are out of stock or do not have enough to complete your order we will notify you by phone or email as soon as possible. If you need to know if we have it in stock before you place the order please call 800-323-2999 Monday through Friday 7:00AM - 4:30PM.

  • Ships Direct: This product ships direct from the manufacturer usually on the same or next business day.

  • Special Order: This product has to be special ordered into our store and then shipped to the customer. This can take form 1-6 working days depending on the item and manufacturer.

  • Out of Stock: This product is out of stock and will be replaced in the future.  Depending on the vendor we can sometimes have a product that is out of stock drop shipped direct to you. Please call 800-323-2999 if you have any questions.

  • Discontinued: These are products we are no longer stocking.  However they may be available as a special order.  Please call 800-323-2999 if you have any questions.


Please Note:  If we can drop ship an order and save shipping charges we will notify you and then pass the savings on to you.