Tyvek Flashing Tape 12 inch x 75 ft

DuPont™ Tyvek® Flashing Tape – 12 in x 75 ft Wide Self-Adhered Flashing Tape

DuPont™ Tyvek® Flashing Tape is a professional-grade self-adhered flashing tape designed to provide reliable air and water sealing around windows, doors, and wall transitions. The 12-inch width offers extended coverage for larger openings, deep window returns, and complex flashing details where standard-width tapes may not provide sufficient overlap.

In simple terms: This extra-wide flashing tape is used when you need more coverage to seal large or complex openings and transitions against wind and water.

Built with a durable facer and a high-performance adhesive, Tyvek® Flashing Tape integrates seamlessly with Tyvek® weather-resistive barriers (WRBs) to help form a continuous protective layer. The wide format helps reduce the number of seams and overlaps required, supporting cleaner detailing and improved long-term performance.

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Best For

• Contractors: Large window and door openings, deep returns, and complex flashing conditions.
• Homeowners/DIY: Projects where added coverage provides extra protection and peace of mind.

Key Benefits

• Extra-wide coverage: 12-inch width helps span large transitions and reduce the need for multiple layers.
• Air & water sealing: Helps block wind-driven rain and air infiltration at vulnerable openings.
• Reliable adhesion: Designed to bond to common construction materials when properly prepared.
• System compatibility: Integrates with Tyvek® WRBs as part of a complete envelope system.
• Cleaner detailing: Fewer seams and overlaps compared to narrower flashing tapes.

Typical Uses

• Flashing large window and door openings
• Deep window returns and rough openings
• Wide transitions between WRBs and other materials
• Detailing complex wall penetrations
• Projects requiring extended flashing coverage

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Specifications

Product Type	Self-adhered flashing tape
Size	12 in x 75 ft
Brand	DuPont™ Tyvek®
Primary Use	Flashing windows, doors, and wide wall transitions
Compatibility	Designed for use with Tyvek® WRBs and common sheathing materials

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Installation Notes (Best Practice)

• Surface prep: Apply to clean, dry surfaces free of dust, oils, and debris.
• Press firmly: Use hand pressure or a roller to ensure full adhesive contact.
• Plan coverage: Use the wide format to minimize seams and overlaps where possible.
• Sequence correctly: Install flashing in proper order with WRB to promote water shedding.

Why It Matters

Larger openings and complex wall details present a higher risk for leaks if not flashed properly. Tyvek® Flashing Tape (12") provides extended coverage that helps simplify installation, reduce potential failure points, and support long-term air and water management when used as part of a complete envelope system.

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Common Questions

Q: Why use 12-inch flashing tape instead of narrower sizes?
A: The wider format provides more coverage for large openings and deep returns, reducing seams and improving detailing.

Q: Can this be used with Tyvek® HomeWrap® or CommercialWrap®?
A: Yes — it is designed to integrate with Tyvek® WRBs as part of a complete weather-resistive barrier system.

Q: Is this the same as seam tape?
A: No — flashing tape is for windows, doors, and openings. Seam tape is used only for sealing housewrap seams.