Maximum Coverage Air & Vapour Protection System

3015NP AB WT 48" x 75' Air & Vapour Barrier Membrane is a high-performance self-adhered membrane engineered for superior air sealing and moisture protection in commercial and residential building envelope systems. With its extra-wide 48-inch format, this membrane provides maximum coverage and installation efficiency for large wall areas, transitions, and flashing applications while supporting airtight, energy-efficient construction.

Key Features:

• Air & Vapour Barrier Performance: Helps reduce air leakage and moisture infiltration
• 48" Wide Coverage: Ideal for large-scale wall and building envelope applications
• Self-Adhered Installation: Provides strong adhesion to common construction substrates
• Durable Construction: Resistant to weathering and long-term environmental exposure

Benefits:

• Improves building envelope efficiency and thermal performance
• Helps protect wall systems from moisture penetration
• Reduces installation time with ultra-wide coverage
• Provides reliable, long-lasting sealing performance

Applications:

• Exterior wall air and vapour barrier systems
• Sheathing and building envelope protection
• Window and door transition 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.