The Enviro-Barrier is a single-component, fluid-applied, elastomeric membrane that provides an air, water, and vapor barrier when applied to abovegrade wall assemblies. It remains flexible over a wide temperature range and meets or exceeds the highest industry standards for air barrier performance. Enviro-Barrier uses an asphalt-free spray, applicable formulation that provides adhesion to masonry materials. Hohmann & Barnard Inc. 800-645-0616.