Henry 711-90 Sheet Membrane and Flashing is a 90-mil-thick composite consisting of a self-adhering rubberized asphalt membrane laminated to a high-strength, heat-resistant woven polypropylene mesh. A siliconized release liner prevents the material from sticking in the roll, and easily removed for installation.

The factory-controlled quality ensures uniform thickness on the job, while the inherent waterproofing properties of the rubberized asphalt membrane provide an excellent water barrier. The woven mesh is designed to withstand high temperatures, allowing the membrane to become an integral part of the Henry 790-11 / 500R Hot-Applied and Vapor-Lock Waterproofing Systems.

711-90 Sheet Membrane and Flashing is primarily designed to be used in conjunction with Henry 790-11 / 500R Hot-Applied Membranes. It may be used as a preformed first course on the difficult-to-coat substrates such as lightweight structural concrete. As a flashing, it provides a reinforced, uniform 90-mil layer on vertical surfaces while reinforcing cracks and joints.