Roller- or spray-apply Barriseal to a variety of concrete surfaces to form a flexible air/vapor barrier for cavity wall construction. It is a water-based asphalt emulsion modified with a blend of synthetic rubbers and special additives. The material is nonflammable and solvent-free, with excellent elongation and recovery. Carlisle Coatings & Waterproofing Inc. 800-527-7092. www.carlisle-ccw.com