6 in. x 75 ft. x 40 mil. Fortiflash® Waterproof Flashing Membrane | FF406

FortiFlash® 40 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.

• 40 Mil thickness
• Maximum water and leak protection
• Self-adhesive installation
• Self-sealing 40 mil. rubberized asphalt core stays in place in any weather condition
• Can be installed around protrusions and in tight corners without delaminating or tearing
• Part of a complete moisture control system
• For best results, use with Moistop Sealant