Seamless air and vapor barrier for durable, efficient building envelopes.

How can builders prevent air leaks and water intrusion in exterior walls without slowing down installation?

ExoAir® 210AT’s self‑adhered, peel-and-stick membrane ensures continuous air and water protection while allowing quick application—no primer needed and consistent coverage every time.

Quick peel-and-stick installation.

Continuous air and water barrier.

Allows water vapor to escape.

UV-resistant up to 6 months.

Supports NFPA 285 compliant assemblies.