Tyvek House Wrap: The Industry Standard Weather Barrier (2026)
DuPont Tyvek is the most recognized and widely specified house wrap brand, made from high-density polyethylene fibers flash-bonded into a tough, breathable membrane. It blocks bulk water and air infiltration while allowing moisture vapor to escape from wall assemblies, preventing rot and mold.
Key Features
- Industry-leading brand recognition; HDPE flash-spun technology; Excellent tear resistance; High vapor permeability; Multiple product lines for different needs
Specifications
Applications
- Behind all siding types; Over sheathing; New construction; Re-siding projects; Weather protection during construction
Installation Overview
Start at the bottom corner and wrap horizontally, overlapping courses 6 inches horizontal and 12 inches vertical. Fasten with Tyvek cap nails every 12-18 inches. Tape all seams with Tyvek tape. Integrate with window and door flashing using compatible products.
Pros & Cons
Pros
- ✓ Best brand recognition; Excellent tear resistance; High vapor permeability; 120-day UV exposure; Complete flashing system available
Cons
- ✗ Premium price vs competitors; Surfactant wash concern with some claddings; Must use compatible tape; Can tear before siding installed; Must be properly flashed
Top Brands
Code Requirements
Meets IRC R703.1.1 for weather-resistant barrier. ASTM E2556 compliant. Must integrate with flashing per IRC R703.4. Air barrier per IRC N1102.4.
Buying Tips
Use DuPont Tyvek tape for seams - generic tape may not bond properly. DrainWrap is recommended behind stone veneer and stucco. Buy cap nails rather than using staples for better holding power.
Frequently Asked Questions
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