GAF Materials Corp., Wayne, N.J., offers Timbertex Ridge Cap Shingles. These shingles, with DuraGrip® self-sealing adhesive, help prevent shingle blow off and have been tested at 110-mph winds. The shingles also feature a new pre-scored “chevron-cut” shingle design, which saves on time and labor and ensures a more uniform look. The 8-inch exposure means no difficult cuts and fewer pieces to install. GAF also offers WeatherStop™ Starter Strips, pre-cut for quick and easy installation. Each strip comes with the patented DuraGrip® adhesive that seals the starter strip in place tightly for great performance.