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. It is available in two grades: EXOAIR 120 SP (spray grade) and EXOAIR 120 R (roller grade). EXOAIR 120 R can also be sprayed with the appropriate spraying equipment.