These Galvanized Smooth Style A Roof Edge offerings are extremely effective at guiding water away from the roof and creating a professional finish. Style A Roof Edge not only does roof edge flashing prevent water from blowing under shingles, but a lip along the edge causes water to drip out and away from the structure, instead of directly down the side of the wall or fascia. This helps prevent water damage all the way from the roof to the foundation. It is installed along the edge of the roof, roof edge flashing protects against water infiltration that results in leaks or rot.