The granule layer is the outermost layer of typical asphalt shingles. It’s the part that gives the shingles their features, such as color and reflectivity. More than a few homeowners are concerned about granules falling from their roofs, but is it really something about which you should worry?
Should You Be Worried?
Granules from asphalt shingles are made of crushed stone and minerals. Roofing manufacturers can produce granules of any color. Shingles with plain colors are typically made with one granule color while laminate shingles (also known as “dimensional” or “architectural”) feature blends of two or more granule colors. As the roof ages, some of these granules come loose; it’s not uncommon to find some of them in the rainwater runoff merely weeks after installation. For the most part, granule loss isn’t something that you should be worried about as it’s part of normal roofing wear and tear.
That said, you may need to call for a roof repair contractor if you’re finding a lot of these granules in the gutter runoff. Chances are you may also find a significant deposit of granules in the gutters. Losing granules at that rate can indicate premature wear and tear.
What You Can Do About Loose Granules
Ultimately, what you don’t want to end up with is a roof that’s stripped of its granules or what is commonly referred to as “bald” shingles. If the asphalt layer underneath the granules is exposed, the shingles become vulnerable to ultraviolet (UV) rays and other environmental factors.
Should you find your roof in such a condition, check if it is still covered by manufacturer warranties. Unless the granule loss is caused by impact damage, there really is no reason for the granules to come loose, except if it’s a manufacturing defect. Fortunately, today’s roofing manufacturers offer extensive warranty coverage, with typical material warranty coverage spanning at least 20 years.
Tri-County Contracting is your leading provider of roof replacement and other exterior services. Give us a call at (262) 891-4331, or fill out our contact form. We serve clients in Waukesha, WI, and the surrounding areas.