- Description
Description
ExoAir™ 220R Fluid-Applied Vapor Permeable Air Barrier Membrane is a monolithic elastomeric membrane designed to be rolled on exterior above-grade walls to seal wall assemblies and prevent air infiltration/exfiltration, while remaining permeable to the passage of water vapor. ExoAir 220R is compatible with and part of a complete line of air barrier systems provided by Tremco under the ExoAir™ brand.