• ExoAir 110AT
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ExoAir® 110AT

Self-Adhered Air and Vapor Barrier Membrane

ExoAir® 110AT is a 22-mil composite impermeable membrane that is comprised of 16 mils of butyl and 6 mils of HDPP facer.  It can be used as the membrane or as a detailing accessory of an air barrier system.  ExoAir 110AT when installed properly as a system will provide the requirements of an air barrier: air impermeable, continuity, structural integrity and durability. 

Basic Uses
  • ExoAir 110AT is an impermeable, self-adhered sheet designed to be applied to exterior cavity walls in order to mitigate air infiltration/exfiltration, vapor transmission and water penetration.
  • Typically applied to exterior sheathing boards and concrete block, ExoAir 110AT can also be applied to poured concrete, steel and wood based substrate as well as serve as detailing or a transition membrane into window and door openings.
  • ExoAir 110AT is designed to be installed when both the air and surface temperature are 20 °F (-6 °C) and rising.
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Product Details, Safety, and Installation
Frequently Asked Questions
  • What is the low temperature application limit for ExoAir fluids?

    Tremco recommends that fluid-applied ExoAir membranes be applied to surfaces and ambient conditions above 40˚F (5°C). ExoAir fluids should not be applied to surfaces or when ambient conditions are expected to fall and remain below 40˚F (5°C) during the 24 hours immediately following installation.

  • Are ExoAir membranes self-sealing?

    Yes, all the ExoAir membranes have passed the ASTM tests for nail sealability. The typical nail sealability tests include a smooth roofing nail. Tremco has also tested for nail sealability with a variety of screws and other fasteners. Please refer to the Technical Bulletin for nail sealability.

  • What is the shelf life of ExoAir fluid-applied air barrier membranes? products?

    12 months.