Asphalt shingles are covered by a layer of granules that protects the backing material from UV radiation and provides the roofing color. Some of these granules can come loose as the roof ages, and as a trusted local roofing contractor, we at M & A Roof Home Improvement are often asked by homeowners whether this is a problem. In today’s post, we take a look at what causes asphalt shingle granule loss—and whether or not you should be worried about it.