DELTA®-VENT SA – Vapor Permeable Barrier

The vapor permeable, self-adhering air- and water-resistive barrier comes with BIM models, which allows you to quickly and easily design your building with confidence.

Watch our webinar and find out how you can build high-performance enclosures with the perfect wall.

The water-resistive barrier that is both air tight and permeable.

DELTA®-VENT SA is now stronger and more durable than ever before! Now it may be exposed during the construction period up to 1 year, depending on the climate zone of the site.

The water-resistive barrier that is both air-tight and permeable.
DELTA®-VENT SA vapor permeable air- and water resistive barrier prevents moisture from getting into buildings. By also allowing moisture already in to escape, DELTA®-VENT SA eliminates the risk of mold and other problems caused by water pooling where it should not. Its vapor permeability and air tightness makes DELTA®-VENT SA ideal for building and maintaining healthy and comfortable interiors while letting moisture out and improving energy efficiency.

The high-performance solution for energy-efficient construction.

A critical component of any energy-efficient building enclosure. DELTA®-VENT SA improves the performance of the wall system by adhering to the substrate so fasteners are not required, eliminating leaks due to penetration. DELTA®-VENT SA is dimensionally stable and has the most tightly sealed and secure side laps in the industry. Using DELTA®-VENT SA helps builders meet energy efficiency requirements demanded by clients.

High-performance buildings need high-performance materials.

Better building performance depends largely on the building materials used. Using industry-leading technology, DELTA®-VENT SA creates a continuous water, air, and weather-tight barrier while staying highly permeable, so your buildings stay dry and last longer. DELTA®-VENT SA helps to reduce building issues and emergency calls, and longer-lasting buildings, improved occupant comfort, and client satisfaction.

Easier installation means a healthier bottom line.

Designed with applicators in mind, DELTA®-VENT SA comes fully adhered to simple and straight forward application, no fasteners required. With the self-adhesive edge-lap feature, ensuring an airtight overlap is easier than ever, taking the guesswork out of the application process. DELTA®-VENT SA comes with clear and comprehensive installation guides and videos and technical documents that help reduce installation time and labor costs.

DELTA VENT SA - Graphic New
Product Details
Product Benefits
    • Now allows UV exposure up to 1 year before covering!
      - 180 Days – Climate Zone 1
      - 270 Days – Climate Zone 2
      - 365 Days – Climate Zone 3 and above
    • 3-layer, self-adhered WRB and air barrier
    • Outer layers are made of high-strength spun-bonded polypropylene (PP) fabric bonded to a vapor permeable, watertight TPU middle layer
    • Full surface coating of high tack aggressive adhesive
    • Split release liner for easy application
    • Matte dark gray color reduces irritating glare during installation
    • ABAA, Building Code Evaluation ICC-ESR 2932 (AC38), meets most stringent air tightness requirements when tested by ASTM E2357 and CAN/ULC S742 (Level 3) (Air Barrier Assembly Tests), NFPA 285 compliant, Red List Compliant (DECLARE), Health Product Declaration (HPD 2.0) available
    • Sizes offered: 4’ 11” x 115’ (1.5 m x 35 m)
    • Long allowable UV exposure time allows for maximum schedule flexibility
    • Industry-leading vapor permeability (50 perms), moisture in the building to escape
    • Improves energy efficiency and performance of building enclosures
    • Lightweight and durable, standing up for any job site or weather condition
    • Exclusive self-adhering edge lap
    • Long-term adhesion eliminates fastener leaks
    • Simple application helps ensure proper installation
    • Works flawlessly with DELTA®-HF PRIMER (warm weather applications), or DELTA®-ADHESIVE (cold weather applications) where required.
    • Meets all building codes in the USA and Canada


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