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Asphalt roofing shingles come with a mineral-based coating that helps the material head off the harshest weather conditions. But there may be instances where you’ll find these granules in the gutters or at the end of downspouts, leaving the shingles “bald”. What causes this?
Asphalt shingles remain the dominant residential roofing option in North America, and you can also find them on roofs in scores of countries around the world. Regardless of the style or color, they are all manufactured in pretty much the same way, involving a short list of key raw materials.
