Self-Adhered Air and Water Barrier

Sto Corp.’s StoShield SA high-performance, self-adhered air- and water-resistive barrier is available in two configurations. StoShield SA VP is a vapor-permeable barrier that resists air leakage and water intrusion, while allowing water vapor to escape and the assembly to dry. A nonpermeable version—StoShield SA NP—is designed to resist air, water, and vapor movement and protect above-grade concrete and masonry walls in commercial applications. Both membranes adhere without primer to most substrates in temperatures down to 20°F. stocorp.com