GCP Applied Technologies (“GCP”) PERM-A-BARRIER® NPS Detail Membrane is specifically designed for protecting and sealing critical areas of the building superstructure from the damaging effects of the elements by minimizing air, water and water vapor flow through the building exterior at transition areas.

Features

• Primerless self-adhered membrane: Allows for reduction of  installation time by up to 40%
• Fully bonded: Helps transmit wind loads directly to the substrate
• Waterproof and impermeable to moisture: Impermeable to the passage of liquid water and water vapor
• Air tight: Specifically designed to protect against air passage and associated energy losses. 
• Cross laminated film: Provides dimensional stability, high tear strength, puncture and impact resistance
• Flexible: Elongation test value of  200% accommodates minor settlement and shrinkage movement
• Controlled thickness: Factory made sheet allows for consistent, non-variable site application
• Aggressive, conformable adhesive: Can be used to help seal around mechanical fasteners
• Wide application window: Primerless application at surface and ambient temperatures of 25°F (-4°C) and above.