4" x 75' Tyvek Flashing Tape by Dupont
Ideal for standard window and door installations, this 4" Tyvek flashing tape delivers a tight seal against air and water intrusion.
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Seal Windows and Doors with Tyvek Flashing Tape for Long-Lasting Performance
What It Is
DuPont Tyvek Flashing Tape 6" x 75' (and other widths like 4″, 9″, 12″) are self-adhered flashing tapes designed for sealing openings in a building’s exterior envelope. They’re made with a strong butyl-based adhesive and a durable film top layer that sticks to common building materials.
What It’s For
Flashing tape’s job is critical in preventing moisture and air from getting inside the wall structure:
- It seals around window and door openings to block water intrusion.
- It helps control air leakage, contributing to better energy efficiency.
- It’s applied where housewrap or weather barriers meet fenestration (windows/doors) or other penetrations.
This makes it an important part of a weather-resistive barrier system, working alongside materials like Tyvek® housewrap.
Key Features
- Self-Adhering: Pressure-sensitive butyl adhesive sticks tightly without priming.
- Water & Air Seal: Helps block bulk water, wind-driven rain, and drafts.
- Rugged Construction: Polyolefin (polypropylene) top layer that won’t break down easily.
- UV Exposure Resistance: Many rolls can handle extended sunlight exposure during construction (e.g., ~120 days).
- Compatible with Tyvek® Products: Works with Tyvek® building envelopes and other DuPont weather barriers.
DETAILS:
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Color: white
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Four widths to choose from: 4”, 6”, 9”’, or 12”
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Length: 75’
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Thickness: 20 mil (507 microns)
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Material: polypropylene film, butyl rubber adhesive
More details:
- Made in the USA
- *Rolls sold individually
- Withstands extreme temperatures
- Heavy-duty siliconized paper release liner
- Withstands up to 120 days of UV exposure
- Can be installed at external temperatures as low as 25°F
- Can withstand extended exposure to temperatures as great as 180°F
About this product…
Looking for durable, jobsite-ready flashing tape to seal and protect around doors and windows? Tyvek® Flashing Tape by DuPont is engineered to resist air and water intrusion while improving energy efficiency and indoor comfort. This high-performance DuPont flashing tape delivers lasting protection where it matters most—at the most vulnerable openings of your structure. Made for reliability and versatility, this Tyvek tape comes in four different width options—4", 6", 9", and 12", each roll measuring 75 feet in length. Whether you're managing a simple residential window or a complex multi-family build, there's a size designed for your application.
- The Tyvek flashing tape 4 x 75' option is ideal for standard integral flange residential windows, especially for flashing jambs and heads.
- The 6” width offers added coverage for heads and complex conditions like recessed or bump-out windows, with a 2”/4” split release liner for ease of application.
- The 9” option provides even more surface coverage for rough-side OSB or deep head flashing needs, featuring a 3”/6” split liner.
- For deep sills, interior/exterior corners, or high-performance multi-family construction, the 12” version includes a 3”/3”/6” split liner to simplify installation in more demanding scenarios.
Whether you’re handling renovations or new builds, this DuPont flashing tape installs easily and performs consistently—making it a trusted solution for builders of all experience levels.
10-Year Limited Warranty
Still have questions or need help selecting the right flashing tape for your project? Reach out to Deck Expressions' 24/7 customer service—we're here to help every step of the way.
