This adhesive-backed weather-stripping is constructed of dual fin protective barriers that are woven down the center of the white pile material at 1/4 inch in height. This weatherseal weatherization product highlights the insulating benefits of Owens Corning's Air Sealing Technology™ which is designed to keep the outdoors outside your home or business. This item can be used on virtually every door and window in a residence to improve the energy efficiency of the home by sealing the gaps and leaks around the doors and windows which allow outside air to enter, and inside conditioned air to escape. Most energy experts agree that a properly weather-stripped home will pay for the cost of weatherizing in energy savings in less than one season alone. Replacement is easy with this 3/8 inch wide backer because it features an easy-2-install, peel-n-stick application which is designed to simplify your weather-sealing projects with an effectively sealed perimeter around your windows and doors. This pile weatherstrip comes in 18 ft. lengths with a Lifetime Warranty, and it's guaranteed not to break down like other felt and foam tape weatherseal products. This patented installation system allows for easy install without the need to remove window parts or glass.