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Item: 221649

Securock® ExoAir® 430 Panels

Securock® ExoAir® 430 Sheathing Panel includes a factory-applied air and water membrane designed to provide superior protection for the building envelope.



Available in ½” and 5/8” thickness, the Securock® ExoAir® 430 Panel is a glass-mat, moisture- and mold-resistant lightweight gypsum panel, with a non-combustible core. The gypsum panel has been coated in a controlled environment with a synthetic vapor permeable air & water barrier membrane. The in-plant application provides a uniform membrane with superior bond resulting in consistent and predictable air and water barrier performance. The panel is a component of the he Securock® ExoAir® 430 System, to be installed using Tremco® sealants and transition membranes to achieve air & water barrier continuity. The Panel can be exposed to UV up to 12 months and offers a 15-year panel warranty.

Main Features

Available in both ½” and 5/8” thicknesses, the Securock ExoAir 430 Panel features:
  • In-plant application ensures membrane uniformity and adhesion
  • Membrane is not climate-dependent and not susceptible to wash out
  • Panel eliminates sheathing preparation in the field prior to the traditional field application of air barrier
  • UV and weather resistance allow the panel to be installed, sealed and left exposed while interior construction begins
  • Utilizes the lightest glass mat sheathing available – up to 15% lighter than other glass-mat sheathings
  • Scores and snaps like traditional sheathing for easy installation
  • Meets or exceeds the requirement of ASTM C1177
  • Meets or exceed the requirement of ASTM E2178 and E2357


Submittal Sheet


  • Mold & Mildew Resistance Yes
  • Fire Resistance
    • Fire Rating Type X
  • UL Type Designations USGX

Physical Data

  • Thickness (in.) 5/8
  • Edge Square Edge
  • Panel Size 4 ft. x 4-12 ft.
  • Nominal Weight 2.9 lb./sq. ft.

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