Ideal for both new and retrofit applications, Perm-A-Barrier Wall Flashing is a thick wall membrane designed to collect water entering wall cavities and direct it to the exterior through the wall's weep system. Its unique green color and repeated imprinted logo quickly differentiate it on the jobsite from other flashing types. Easy to install, Perm-A-Barrier can be applied to concrete, block, steel, masonry, gypsum and wood and is highly effective even on vertical surfaces and around details.

Perm-A-Barrier® wall membranes are ideal for protecting the building superstructure from the damaging effects of the elements. By minimizing air and water vapor flow through the building exterior, Perm-A-Barrier wall membranes. Its Prevent premature deterioration of the building envelope. Its enhance thermal performance of the structure and save energy costs. Its improve comfort for the building occupants.