ExoAir 210AT

A high-performance, primerless, self-adhered air- and vapor-permeable membrane. ExoAir® 210AT offers 6 months of UV resistance, high service temperatures and extended construction windows through cold weather application. It is recommended for projects that require NFPA 285 assembly testing.

ExoAir 210AT

Self-Adhered Air and Vapor Permeable Membrane

ExoAir 210AT is a high-performance, self-adhered air and vapor permeable membrane engineered for ease of installation and superior durability. Unlike fluid-applied systems, this peel-and-stick membrane delivers consistent thickness and reliable adhesion without the need for primers. It is ideal for projects requiring UV resistance, wide service temperature ranges, and flexible scheduling in varying weather conditions.

Key Benefits of ExoAir 210AT

  • Primerless Application: Fast peel-and-stick installation saves time and reduces material costs.
  • UV Resistance: Withstands up to 6 months of UV exposure for flexible construction schedules.
  • Low Temperature Application: Effective above 20 °F (-7 °C), enabling installation in cold climates.
  • Uniform Thickness: Ensures performance consistency across all surfaces.
  • NFPA 285 Tested: Meets fire resistance standards for exterior wall assemblies.

Common Applications

  • Exterior-grade gypsum sheathing
  • Concrete and CMU walls
  • Exterior sheathing and substrates
  • Unpainted, unsealed masonry

Packaging & Installation

ExoAir 210AT comes in roll form for efficient application. Designed to be installed without primer, this membrane simplifies the process of air barrier integration and supports installations in diverse temperature ranges. It’s a dependable solution for projects with tight timelines and demanding performance criteria.

Product Properties

Property Value
Application Temperature Above 20 °F (-7 °C) and rising
ASTM E2178: Material Air Permeance 0.003 cfm/ft² (0.02 L/s·m²)
ASTM E96: Water Vapor Transmission 16.9 perms
NFPA 285: Fire Resistance of Assembly Pass

Also see ExoAir 220 for fluid-applied membrane solutions. Learn more at Tremco Sealants.