All of our information is sourced from manufacturer data.

Delta-Vent S

Dorken Systems

Delta-Vent S

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WRB (Weather/Water Resistant Barrier) WRB (Weather/Water Resistant Barrier)

Fully Adhering Fully Adhering

Polymer Polymer

Sloped Roof, Wall Sloped Roof, Wall

Concrete, Masonry, Wood Sheathing Concrete, Masonry, Wood Sheathing

Design Options

Product Description

DELTA®-VENT S is a highly vapor permeable water-resistive barrier, allowing moisture within the building enclosure to escape through the membrane. Its high permeability and extreme air-tightness make it an ideal air and water-resistive barrier membrane for energy-efficient construction. DELTA®-VENT S is watertight and will help protect the building enclosure from wind-driven rain and snow while providing a drainage plane to channel water harmlessly to the outside of the building.

Sheet Width


Standard Sizes: 4' 11"



Sheet Length



Standard Sizes: 13' 8"




Manufacturer Design Notes

It is a high-Performance Air Barrier when used with Delta accessories.

Performance Data

Product Weight Per Area

Roll Tensile Strength

Weight needed to break the roll, per inch of width

Water Vapor Transmission

An imperial perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury

perm (imperial)


Minimum Temperature Rating

The lowest temperature that the product has been confirmed to still function at.



Air Permeance

Rate of airflow through the barrier per square foot at a specified pressure difference

cfm /ft^2 @ 1.57 psf


Dorken Systems

Dörken Systems Inc.4655 Delta Way Beamsville L3J 0T6

1 (905) 563-3255