ExoAir® 111 is a composite 24-mil sheet designed for use as the membrane or as a component of an air barrier system. ExoAir 111 is 20 mils of high-performance butyl laminated to 4 mils of metalized highdensity polypropylene film and a siliconized release liner.
![Tremco ExoAir 111](https://bapionline.com/wp-content/uploads/2024/03/Tremco-ExoAir-111.jpg)