ExoAir 120

Fluid-Applied, Asphaltic Air & Vapor Barrier Membrane

ExoAir® 120 Fluid-Applied Air and Vapor Barrier Membrane is a monolithic, elastomeric membrane designed to seal exterior above-grade wall assemblies and mitigate air infiltration/exfiltration, vapor transmission and water penetration.


  • ExoAir 120 is typically applied to exterior sheathing panels, concrete block, poured concrete or wood substrates as an air and vapor barrier material
  • ExoAir 120 can be used with ExoAir 110, ExoAir 110AT, ExoAir 111 or Dymonic® 100 liquid flashing to detail into the rough opening.