Soprema Sopraseal Stick AVB AT – All-Temperature Self-Adhered Air & Vapour Barrier | IPS Metal

The Soprema Sopraseal Stick AVB AT is a self-adhered, all-temperature air and vapour barrier membrane designed to perform in both hot and cold weather conditions. Engineered for above-grade wall assemblies, it provides long-term protection against air leakage and moisture infiltration while maintaining superior flexibility.

Key Features:

• All-temperature formulation for installation in both warm and cold weather

• Self-adhered SBS-modified bitumen membrane with aluminum film facer

• Exceptional adhesion to a variety of substrates (gypsum, wood, concrete, metal)

• Cold-applied — no primer required on most clean, dry surfaces

• Flexible, tear-resistant, and highly durable

• Compatible with most wall systems and sealants

• Meets or exceeds ASTM E2357 and CAN/CGSB-37.58 standards

Typical Applications:

• Exterior wall air and vapour barrier systems

• Transitions between wall assemblies and roofing

• Around openings (windows, doors, penetrations)

• Use under metal panels, masonry, or cladding systems

Installation Guidelines:

• Apply to clean, dry surfaces; surface must be free from frost, grease, or dust

• For best adhesion, apply above -10°C (14°F)

• Overlap adjacent sheets by at least 2" (50 mm)

• Press firmly with a roller for full bond

• Use compatible mastics or sealants at terminations

Technical Specifications: