FortiFlash 25 mil self-adhered flashing membrane

Henry FortiFlash is a self-adhesive waterproof flashing membrane designed to help protect window and door openings from water intrusion. The reinforced film and rubberized asphalt core resist tearing and self-seal around nails for durable, watertight performance.

Key Features:

Self-Adhered Installation: Strong adhesion helps the flashing stay in place without mechanical fasteners.
Watertight Nail Sealing: Rubberized asphalt core self-seals around nails and fasteners to help prevent leaks.
Reinforced Durability: Cross-laminated high-density polyethylene film helps resist delamination and tearing.
Flexible Detailing: Installs around protrusions and into tight corners for reliable window/door flashing.
Code/Standard Compliance: AAMA 711 compliant for self-adhered flashing membranes.

Please check the Product Data Sheet Here

Specifications Table:

Specification	Details
Category	Flashing
Sub Category	Window, Door & Wall Penetration Flashing Membranes & Tapes
Unit of Measure	RL - Roll
Product Type	Waterproof flashing membrane (self-adhered)
Thickness	25 mil
Roll Width	6 in (0.5 ft)
Product Length	75 ft
Coverage Area	37.5 sq ft
Siding Features	Bendable; Water Resistant
Construction	Cross-laminated high-density polyethylene film reinforcement; rubberized asphalt core
Performance Feature	Self-seals around nails and fasteners
Compliance	AAMA 711 compliant

Frequently Asked Questions (FAQ):

Q: Where can I use this flashing membrane?
A: Use it around windows and doors, and on non-roofing horizontal applications like pot shelves, parapets, sill pans, and recessed windows.

Q: Does it require mechanical fasteners?
A: No—it's self-adhered, and its adhesion is designed to keep it in place without mechanical fasteners.

Q: Will it seal around nail penetrations?
A: Yes—the rubberized asphalt core self-seals around nails and fasteners for lasting watertightness.

Q: What is the roll size and coverage?
A: This roll is 6 in. wide by 75 ft long and covers about 37.5 sq ft.

The invisible layer that makes a space feel impeccably finished

Luxury begins with what you don’t see—those meticulous, behind-the-wall details that make everything feel quiet, refined, and protected. FortiFlash brings that couture-level precision with a self-adhered membrane that hugs corners and penetrations, sealing water out with confidence. Use it to elevate window and door detailing so trim, paint, and plaster stay pristine season after season. It’s the subtle essential that lets the visible finishes shine.

Seal vulnerable openings with Henry FortiFlash and get long-lasting, self-adhered protection where water intrusion starts.

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Installation

Henry

Henry FortiFlash 25 mil Self-Adhered Waterproof Flashing Membrane Roll, 6 in. x 75 ft