ExoAir® 110AT Self-Adhered Air and Vapour Barrier Membrane

TDS

Seal, Protect, and Perform with Confidence

ExoAir 110AT is a high-performance, self-adhering air barrier membrane designed to deliver superior protection against air, vapour, and water infiltration. This 18-mil composite sheet features a durable 12-mil butyl adhesive layer and a 6-mil HDPP facer, offering unmatched durability and ease of installation.

Whether you're sealing exterior cavity walls, detailing around windows and doors, or installing through-wall flashing, ExoAir® 110AT ensures a continuous, air-impermeable barrier that meets the highest standards of structural integrity and long-term performance.

Key Features

• No Primer Needed – Save time with fast, primerless application.
• Durable & Consistent – Uniform thickness ensures reliable coverage and performance.
• Rugged Protection – HDPP facer resists damage during construction.
• Thermal Stability – The white facer reduces heat absorption for improved performance in varying temperatures.
• Versatile Installation – Works on sheathing, concrete, steel, wood, ICFs, and more.
• All-Weather Ready – Installs in temperatures as low as 20°F (-6 °C) and rising.
• Lightweight & Efficient – Easier handling compared to traditional 40-mil systems.

Applications

• Exterior sheathing boards
• Concrete block and poured concrete
• Steel and wood substrates
• Nudura and other insulated concrete forms (ICFs)
• Window and door transitions

Available Sizes

• Widths: 4", 6", 9", 12", 18", 24", 36"
• Length: 75 ft per roll
• Packaging: Varies by width (see product specs for details)

Coverage

Coverage depends on the selected width. Choose the size that best fits your project needs.

Availability

ExoAir® 110AT is available through Tremco distributors and sales representatives. Visit www.tremcosealants.com to find a distributor near you.