3015NP AB WT 18" x 75' Air & Vapour Barrier Membrane

Wide-Coverage Air & Vapour Sealing Solution

3015NP AB WT 18" x 75' Air & Vapour Barrier Membrane is a high-performance self-adhered membrane designed for superior air sealing and moisture protection in commercial and residential building envelope systems. Featuring an 18-inch wide format and slit liner configuration, this membrane provides efficient coverage for large transitions, penetrations, and detailing applications while supporting airtight, energy-efficient construction.

Key Features:

• Air & Vapour Barrier Performance: Helps reduce air leakage and moisture infiltration
• 18" Wide Coverage: Ideal for large joints, transitions, and flashing applications
• Slit Liner Design: Enables precise positioning and easier installation
• Durable Adhesion: Bonds securely to a variety of construction surfaces

Benefits:

• Improves overall building envelope efficiency
• Helps protect wall systems from moisture intrusion
• Provides reliable long-term sealing performance
• Reduces installation time on large-scale applications

Applications:

• Air and vapour barrier systems
• Window and door flashing transitions
• Wall assembly penetrations and detailing
• Commercial and residential construction projects

3Mâ„¢ Air and Vapour Barrier is an air, moisture, and water impermeable film membrane with an aggressive, high-tack pressure sensitive acrylic adhesive. It reduces air leakage and uncontrolled airflow from the building envelope, prevents moisture ingress and helps improve indoor air quality. It does not require the use of a primer on most construction surfaces.