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Barritech VP is applied to exterior wall assemblies where it functions as an air barrier and water-resistive barrier. This product may be installed down to 20F. Barritech VP can be applied over concrete block, concrete, exterior gypsum sheathing, plywood, OSB, and many other common materials. The product is fully adhered to the substrate, flexible and rubber-like. Barritech VP is a single component, air-drying product applied by spray or roller at nominal 40 mils dry film thickness. The high film thickness and flexible, elastic properties enable Barritech VP to bridge cracks and seal around penetrations which creates a truly continuous, monolithic air and water barrier.