Flashing tape is a self-adhesive, weather-resistant tape used to seal windows, doors, and other openings in exterior walls against water and air infiltration. Durable acrylic and butyl adhesive formulas bond in a wide range of temperatures and hold strong through rain, sun, and seasonal shifts.
Flashing tape is a self-adhesive weatherproofing tape built to seal windows, doors, and other openings in exterior walls against water and air infiltration. As part of a complete building envelope system, it forms a tight, flexible barrier around sills, jambs, and heads that keeps moisture out and helps prevent mold, rot, and structural damage down the road.
At FindTape.com, our flashing tape selection includes trusted brands like 3M, Polyken, and FrogTape, each offering a distinct adhesive technology to match your project. 3M 8067 All-Weather Flashing Tape features a high-tack acrylic adhesive on a thin, tear-resistant film backing that conforms easily around corners and under siding, even on damp surfaces. Polyken 627-20 Shadowlastic Plus uses a butyl rubber adhesive paired with a woven polyethylene backing for a permanent, weather-tight bond to plywood, OSB, housewrap, concrete, and metal. FrogTape Pro Grade Flashing Tape rounds out the lineup with a rugged, all-weather membrane built for deck ledgers, wall intersections, and other tricky transitions.
Widths typically range from 2 to 9 inches and rolls run from 30 to 100 feet, so you can flash a single window or wrap an entire job site without running short. Many of our flashing tapes meet AAMA 711 and ASTM E2112 standards and qualify for LEED credits, making them a solid choice for code-compliant, energy-efficient builds. They resist UV exposure, stick in a wide range of temperatures, and stay flexible enough to seal around nails, fasteners, and irregular surfaces.
Whether you are flashing a new window installation, sealing a deck-to-wall joint, or weatherproofing a sidewall seam, our flashing tape gets the job done right the first time. Browse our full lineup below and find the perfect match for your next construction or home improvement project.
If you're looking for an adhesive product or tape to do a specific job, try our Advanced Tape Finder. This tool allows you to narrow down your search based on adhesive type, removability, peel adhesion, thickness, and other specifications. You can also visit our Shop by Department page to find the best tapes for your specific application or industry.