ExoAir 110
Self-Adhered 40-Mil Air and Vapor Barrier Membrane
ExoAir® 110 is a self-adhered air and vapor barrier membrane designed for flashing and transition applications where a consistent 40-mil thickness is required. Manufactured with a durable SBS asphalt core and HDPE facer, ExoAir 110 offers excellent flexibility, waterproofing, and performance for sealing critical transitions such as window openings, door frames, sheathing seams, and penetrations. With its simple peel-and-stick design, this membrane reduces labor time and enhances jobsite efficiency. The product is compatible with all Tremco fluid-applied air barriers and performs reliably across a wide range of temperatures.
Key Benefits of ExoAir 110
- Consistent 40-Mil Thickness: Delivers uniform coverage ideal for detailed flashing applications.
- UV Resistant: Withstands up to 3 months of UV exposure, allowing flexibility in construction sequencing.
- Compatible with Tremco Systems: Fully compatible with Tremco’s full line of fluid-applied air barriers.
- Self-Adhering Design: Peel-and-stick application speeds up installation and reduces error.
Common Applications
- Window and door openings
- Wall-to-roof transitions
- Utility penetrations
- Panel joints in exterior sheathing
Packaging & Installation
ExoAir 110 is available in 75′ (22.8 m) rolls with 6″, 9″, and 12″ width options to fit common jobsite needs. It is applied directly to clean, dry surfaces above 20 °F (-6 °C). Primer may be required depending on substrate porosity. The membrane conforms well to irregular surfaces and transitions, ensuring full coverage and a tight seal. For best results, press the membrane firmly to eliminate air pockets and use a roller to enhance adhesion.
Product Properties
| Property | Value |
|---|---|
| Application Temperature | Above 20 °F (-6 °C) and rising |
| ASTM E2178: Material Air Permeance | 0.00001 cfm/ft² (0.00005 L/s·m²) |
| ASTM E96: Water Vapor Transmission | 0.03 perms |
| Service Temperature | Intermittent exposure up to 190 °F (87 °C) |
| Thickness | 40 mils: 34 mils SBS asphalt, 6 mils HDPE facer |
See also ExoAir Primer for substrate preparation. Visit Tremco Sealants for full envelope solutions.




