The answer to 'what is asphalt shingles' is that asphalt shingles are the most common type of roofing material used on homes in North America. Asphalt shingles are made up of a fiberglass or organic mat base that is coated with asphalt and then covered with mineral granules. These granules protect the asphalt from UV damage and provide the shingles with their color.
Asphalt shingles are popular because they are relatively inexpensive, easy to install, and come in a wide variety of colors and styles to match the aesthetic of any home. They also provide good protection from the elements and have a lifespan of 15-30 years depending on the quality of the shingles and the climate.