DELTA Vent S

The Problem

To become more energy-efficient, structures are now being built with extreme airtightness. Tight buildings prevent outside air and bulk liquid from entering while allowing damaging interior moisture vapor to escape - making air and water barriers increasingly important. Building wraps are often used even though they are easily damaged: every staple hole, seam, or wall intrusion allows for air movement, and uncontrolled air movement can lead to unwanted condensation due to temperature differentials across the wall.

The Solution

DELTA-VENT S is a heavy-duty, highly permeable water-resistive barrier and air barrier. The 3-layer, spun-bonded polypropylene membrane is suitable for all wall applications and resists UV exposure for up to one year.

Product Details

• High-performance water-resistive barrier
• Two outer layers of high-strength, spun-bonded polypropylene, thermally bonded to a highly vapor-permeable, watertight polymeric middle layer, on top of a protective fabric layer
• High permeability

Product Benefits

• Waterproof - resists wind-driven rain and snow
• High permeability allows moisture accumulation within the structure to escape via diffusion
• Maximizes airtightness, ideal for energy-efficient construction
• Lower-side fabric layer protects the WRB against damage (e.g., roughly sawn sheathing)
• Matte black color prevents blinding glare during installation
• Lightweight, easily lined up and unrolled
• Large roll size simplifies installation, minimizing laps and maximizing productivity