
GCP PERM-A-BARRIER® Wall Flashing
GCP PERM-A-BARRIER® WALL FLASHING SELF-ADHERING, RUBBERIZED ASPHALT FLASHING FOR CAVITY WALL MOISTURE PROTECTION PERM-A-BARRIER® Wall Flashing is a high-performance through-wall flashing that creates a watertight barrier while allowing for fast, clean installation. Its rubberized asphalt and cross-laminated film construction offers superior durability, flexibility, and dimensional stability, making it ideal for cavity wall applications where water and air infiltration must be minimized. FEATURES Fully bonded system: Creates continuous adhesion to the substrate, preventing water tracking and wind uplift. Waterproof and vapor impermeable: Blocks both liquid water and vapor to protect the building envelope. Cold-applied application: Eliminates open flame risk with peel-and-stick simplicity. RIPCORD® split release liner: Speeds up detailing in corners and complex transitions. Tear- and puncture-resistant: Cross-laminated film provides high strength and durability. Green jobsite