StoGuard’s new Transition Membrane is a flexible air barrier membrane for use at detail areas on vertical above-grade wall construction. Used with StoGuard waterproof air barrier membranes, it provides flexible connections to achieve continuity of the air barrier assembly. It also functions as a secondary weather seal at joints in construction. According to the company, the durable material is a fully adhered product that will not peel at the edges or stain due to adhesive leaching. The flexible material works for both static and dynamic joint conditions, and applies without specialized labor or tools.