Fluid-Applied Air/Water Resistive Barrier Systems or “liquid WRBs,” have become a popular choice for use in commercial exterior wall construction. One reason is that building codes require the air barrier to be durable and continuous over the entire building envelope. Liquid WRBs provide durability and continuity because they fully cover substrates.
Peel and stick flashings are excellent materials for covering critical details in liquid WRB systems. Those with a rubberized asphalt adhesive laminated to a poly or poly/foil composite facer enjoy widespread use. No matter the composition, proper integration of the materials is essential for achieving a durable and continuous air and water resistive barrier. This guide
will walk you through best installation practices.