CCW Vapor Lock

CCW's Vapor-Lock System utilizes the CCW-711W sheet membrane as a preformed first course on difficult-to-waterproof substrates such as lightweight structural concrete and wood. The CCW-711W sheet membrane is a 90-mil composite consisting of a self-adhering rubberized asphalt membrane laminated to high-strength, heat-resistant woven polypropylene mesh. The woven mesh is designed to withstand high temperatures, allowing the membrane to become an integral reinforcement part of the CCW-500R Hot-Applied Membrane System. The second course of the Vapor-Lock System is the application of CCW-500, a single-component rubberized asphalt compound that forms a tough, flexible, monolithic membrane over the CCW-711W sheet membrane.