Grip-Rite® Window & Door Protector Southern Blend is a self-adhesive membrane that eliminates drafts and water leaks. Use it to waterproof wood, brick, concrete, and metal surfaces and to ensure a continuous air/vapor barrier on the following structures, doors, windows, and joints between waterproofing membranes installed without overlaps. Get comprehensive door, window and other building protection. Our window and door sealing tape offer high performance for your peace of mind.