The answer to 'what causes asphalt shingles' is that asphalt shingles are a type of roofing material made from a base layer of fiberglass or organic material, coated with asphalt, and then covered with mineral granules. Asphalt shingles are a popular choice for residential roofing due to their affordability, durability, and wide range of color options.
Asphalt shingles are produced by combining several key components: a base mat, asphalt coating, and mineral granules. The base mat provides structure and support, while the asphalt coating acts as a waterproof and weather-resistant layer. The mineral granules, which are typically made of crushed stone or ceramic, protect the asphalt from UV damage and give the shingles their distinctive appearance.