DuPont Tyvek Tape is a 2-inch wide, 165-foot roll of specialized seaming tape engineered from biaxially oriented polypropylene (BOPP) film with a permanent acrylic pressure-sensitive adhesive. Montana contractors should care about this tape for one reason above all others: it maintains performance from -40°F to 220°F — a temperature range that actually covers the state’s brutal winter-to-summer swings.
The tape delivers a 10 or 20-year limited warranty when installed per DuPont guidelines, but only if used as part of a complete Tyvek building envelope system. At 27 pounds per inch minimum tensile strength and over 30 ounces per inch peel adhesion, it’s built to stay put through freeze-thaw cycles that destroy lesser tapes.
Performance in Montana Conditions
The numbers that matter for Montana builders tell the real story. The tape passes low-temperature flexibility testing with no cracking on a 5mm mandrel at -4°F. That’s not marketing fluff — it means the tape won’t crack and fail when applied during a cold snap or after weathering a Montana winter.
UV resistance matters at elevation where the sun hits harder. The vapor permeability allows moisture vapor to escape, preventing the condensation buildup that rots sheathing behind house wrap. Users consistently praise its exceptional stickiness and reliability, though common critiques include difficulty handling in windy conditions as it sticks to itself easily.
| Specification | Value |
|---|---|
| Width | 2.0 in. (50.8 mm) |
| Length | 163.8 ft / 54.60 yd (50 m) |
| Tensile Strength | 27 lb/in minimum (ASTM D882) |
| Peel Adhesion | > 30 oz/in (ASTM D3330) |
| Temperature Range | -40°F to 220°F |
| Low Temp Flexibility | No cracking (5mm mandrel @ -4°F) |
The hand-tearable feature sounds trivial until you’re wearing gloves in February trying to seal a penetration. No knife needed — just tear and apply.
Installation Requirements and Compatibility
DuPont doesn’t mess around with installation specs. Surface must be clean, dry, and free of dirt, oil, or grease. Minimum 2-inch overlap on all sides of the joint or tear. Press firmly with hands or a J-roller to ensure continuous contact and bond. Avoid wrinkles and fish-mouths which can trap water.
The tape is compatible with all DuPont Tyvek WRB products — HomeWrap, StuccoWrap, CommercialWrap, and DrainWrap. It also adheres to stainless steel surfaces and general wood and plywood sheathing. ICC-ES Evaluation Report ESR-2370 compliance means it meets code requirements for air and water barrier systems.
The tape can be applied in various temperatures and is rated for all climates. That flexibility matters when Montana weather refuses to cooperate with construction schedules.
The Competition
ZIP System Tape is designed for coated sheathing while Tyvek Tape is designed for house wrap systems. ZIP Tape is typically thicker and more flexible but requires dry surfaces for installation. 3M Construction Seam Tape 8087 uses similar BOPP film but is often wider (2.875 in.) and has a slightly lower heat rating (up to 185°F vs Tyvek’s 220°F).
DuPont explicitly states Tyvek Tape is not a substitute for duct tape and is specifically engineered for UV exposure and permanent adhesion to WRB surfaces. Contractors who try to save money with duct tape learn this lesson the hard way when it fails after one season.
Applications and Uses
Primary applications include seaming DuPont Tyvek weather-resistive barriers, sealing gaps around window/door flanges as a secondary seal, repairing tears or holes in house wrap, EIFS stucco installations, and general weatherization and moisture barrier sealing.
TYVEK Tape is specially engineered for use with TYVEK HomeWrap. This crucial, final step provides maximum reduction of air infiltration and water protection. TYVEK Tape helps create a seamless, protective building envelope.
Frequently Asked Questions
Can Tyvek Tape be used with non-DuPont house wraps?
While the tape adheres to general wood and plywood sheathing, it’s specifically engineered for Tyvek products. The 10 or 20-year warranty requires installation as part of a complete DuPont Tyvek Building Envelope system. Using it with competitor house wraps voids the warranty.
How does extreme cold affect the tape’s performance?
The tape maintains flexibility down to -40°F service temperature and passes the -4°F mandrel bend test without cracking. It can be applied in various temperatures and is rated for all climates. The permanent acrylic adhesive is formulated to maintain bond strength through temperature extremes.
What’s the shelf life of unopened rolls?
Store rolls in a cool, dry location. Inspect the adhesive before use if the roll has been stored for extended periods. Like most pressure-sensitive adhesives, storage conditions affect longevity more than time.
Is Tyvek Tape worth the premium over generic seam tapes?
Users give it an average rating of 4.8 stars across hundreds of reviews, with consistent praise for its exceptional stickiness and reliability in sealing Tyvek house wrap. The main complaint is that it sticks to itself easily in windy conditions. The temperature range and UV resistance justify the cost for quality builds.
Can it be painted over?
The tape is designed to be covered by siding or cladding, not exposed. Paint compatibility hasn’t been established by the manufacturer, and painting would likely void warranty coverage.
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