6" x 100' Window & Door Flashing Tape – Self-Adhesive Waterproof Sealant Membrane

Ensure long-lasting protection against water and air infiltration with this 6" x 100' window and door flashing tape. Designed as a flexible, self-adhering membrane, this tape creates a durable seal around windows, doors, and other exterior penetrations. Its rubberized asphalt composition combined with a reinforced polymer film delivers excellent adhesion and resistance to tearing during installation. Ideal for both new construction and retrofit applications, this flashing tape helps maintain the integrity of the building envelope while improving energy efficiency. Whether used around door frames, window openings, or wall seams, it provides dependable performance in a wide range of conditions.

Key Features:

• 6" wide x 100' long roll for extended coverage
• Self-adhesive membrane for easy installation
• Helps prevent water, air, and moisture infiltration
• Flexible rubberized asphalt construction for strong sealing performance
• Reinforced polymer film resists stretching and tearing
• Self-seals around nails, staples, and fasteners
• Excellent adhesion to common building substrates
• Suitable for vertical and horizontal applications
• Ideal for windows, doors, sheathing seams, and wall penetrations
• Improves overall energy efficiency by reducing air leaks

Browse our full selection of exterior doors to find compatible products and complete your installation with confidence.