Double-Duty Wall Membrane

For starters, the vapor permeability of Benjamin Obdyke’s VaporWise interior membrane changes along with seasonal changes in humidity levels. When humidity is low, the vapor-variable membrane acts as a Class II vapor retarder. As humidity increases, so does the membrane’s permeability, allowing moisture to escape, helping to dry the wall cavity. Additionally, a layer of reinforced mesh adds strength, and a translucent outer layer enables installers to monitor insulation blown into the cavities. A 59-inch-by-164-foot roll covers 806 square feet. We found prices that vary from around $380 to $430. benjaminobdyke.com