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Mortairvent® RAIN SCREEN System CW

The Mortairvent® CW Mortar Deflection and Ventilation System is a full cavity wall product that combines the benefits of RAIN SCREEN technology through the use of integrated mortar deflection, drainage and ventilation design. The result is an easy to install system that improves the overall performance of the interior wythe while also providing drainage and ventilation for the entire cavity wall.


Mortairvent CW 205

  • Thickness: .40 in. (10 mm)
  • Roll Width: 16 in. (40.64 cm)
  • Roll Length: 40 ft. (12.19 m)
  • Coverage: 53 sq. ft. (4.92 m2)
  • Packaging: 45 rolls per skid

Mortairvent CW 206

  • Thickness: .80 in. (20 mm)
  • Roll Width: 16 in. (40.64 cm)
  • Roll Length: 50 ft. (15.24 m)
  • Coverage: 67 sq. ft. (6.22 m2)
  • Packaging: 20 rolls per skid

Specs & Images

  • Spec Sheet
  • 3-Part Specification
  • AIS
  • LEED Sheet
  • Details & Renderings
  • Installation Video


  • A full-wall mortar deflection and rain screen drainage / ventilation system for masonry cavity wall applications.
  • Maintains a continuous airspace between the outer masonry wall and weather resistant barrier to facilitate moisture drainage and drying.
  • 16” wide material is easily rolled-out between brick anchors as exterior masonry wall is constructed.
  • 30-day UV exposure (max).


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