High Performance WRB/Air Barrier Drainage Cavity Stucco System stucco full width banner1200x480a Combine WrapShield SA Self-Adhered WRB/Air Barrier and VaproMat, a lightweight polypropylene drainage matrix to reduce the incidence of moisture related damage behind cementitious materials. Create a first-class air barrier with WrapShield SA Self-Adhered, then overlay VaproMat creating the much needed drainage plane behind stucco. Ideal for use with stucco or cultured stone, VaproMat is designed to keep the drainage cavity unobstructed during the lath and plaster installation. Constructing a rain screen cavity behind cementitious cladding permits moisture to drain freely down the cavity, away from the structure, allowing the stucco to dry from both sides. Easily works with traditional cladding systems, no change to design or installation practices are required.