TESCON EXTORA® weathertight sealing tape is an essential component of all weather resistive barrier (WRB) systems. It is compatible with membranes and underlays as well as rigid sheathings, rigid wall underlays and rigid air barriers (RAB). TESCON EXTORA® is weathertight and vapour permeable. It is flexible, easy to cut, and has a simple to remove release paper, ensuring maximum productivity during installation. TESCON EXTORA® provides a wind tight and watertight adhesive seal to the substrate, forming weathertight connections under all conditions.