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DELTA-Vent S / Plus
Brand: Delta®
DELTA®-VENT S is a highly vapor permeable WRB, allowing moisture within the building enclosure to escape through the membrane via diffusion. Its high permeability and air-tightness make it an ideal air and water-resistive barrier membrane for energy-efficient construction.
The product is watertight and protects the building enclosure from wind-driven rain. DELTA®-VENT S is very lightweight and tear-resistant. This membrane withstands the rigors of jobsites, as well as tough wind and weather.
Features- Waterproof, resisting the passage of bulk water from wind-driven rain and snow
- High permeability – moisture accumulation within the structure is able to escape via diffusion
- Maximizes air tightness, making it ideal for energy-efficient construction
- Fabric layer on the lower side protects the WRB against damage (e.g. roughly sawn sheathing)
- Matte black; prevents blinding glare during installation
- Lightweight, easily lined up and unrolled
- Large roll size simplifies installation, while minimizing laps and maximizing productivity
Specifications
Brand
Color
- Gray
Water Vapor Transmission
- 820 g/m²/24 h
- 472 g/m²/24 h
Vapor Permeance
- 120 perms [grains/h/ft²/in Hg]
- 69 perms [grains/h/ft²/in Hg]
Breaking Strength
- CD 67.3 lb
- MD 69.9 lb
Elongation at Break
- CD 74.1 %
- MD 44.6 %
Tear Resistance
- CD 1,588 g
- MD 1,078 g
Trapezoid Tearing Strength
- CD 14.6 lb
- MD 21.6 lb
Water Penetration Resistance
- 642.8 cm
Water Impact Penetration Resistance
- No Water Passing
Flame Spread
- NFPA Class A, UBC Class I
- 25
Smoke Developed
- NFPA Class A, UBC Class I
- 105
UV Exposure
- Pass (> 90 % Tensile Retention After UV Exposure)
Temperature Range
- -40° to 176° F (-40° to 80° C)
Roll Weight
- Approximately 24 lb (11 kg)
Roll Length
- 164’ (50 m)
Roll Width
- 4’ 11” (1.5 m)
Certifications & Approvals
- CCMC
- ICC
DELTA®-VENT S is installed outboard of the sheathing prior to the application of the final cladding system. Use DELTA®-LFS 100% silicone for liquid flashing and sealant applications.
Do not use sealants, flashings, products or chemicals that contain surfactants on DELTA® water-resistive and air barrier membranes because they can adversely affect the water hold-out properties of any PP spunbond-based water-resistive barrier.
Such products may include asphaltic materials, various chemicals, acid-based silicones, cleaning compounds, and certain formulations of liquid flashings, e.g. specific STP-based materials. Always confirm compatibility with the manufacturer’s published technical data sheets and with the manufacturer’s technical department. DELTA®Accessories complement the WRB / Air Barrier installation. DELTA®-VENT S is also available in the PLUS version with a self-adhesive edge.