It is composed of asphalt impregnated paper with mineral granules coating the exposed surface. Numerous colors and styles are available to enhance the design of your garage. Shingles are easy to install, require little maintenance and are easy to repair.
Wind sealed shingles have an added dab of roofing cement under the bottom edge of each shingle.
After these are installed and the roof is heated by the sun, the cement melts and sticks to the shingle below, increasing their effectiveness in high wind areas or on shallow sloped roofs. Leaving out the starter strip. Not keeping shingles aligned. Not overhanging shingles at eaves and rakes. Neglecting to stagger joints.