Asphalt shingles contain granules that help boost their protection from the elements. In some cases, asphalt shingles can shed these protective granules. When is this a concern and what should you do about it? Read on as Residential Concerns, a top and repair company, discusses what you need to know about granules.
What Are Asphalt Roof Granules?
The roof granules are the most visible part of the asphalt shingle. They are rock-hard materials that are crushed and screened to specific granular sizes. In areas of the shingle that are not exposed to view, the granules are typically applied in their natural stone color. For the exposed parts, the granules are processed into different long-lasting colors.
Special features can be added to the granules. For instance, some shingles can have algae-resistant granules that prevent discoloration caused by blue-green algae. They can also feature reflective granules to give your roof a higher capacity for reflecting the sun’s heat.
When Should I Be Concerned About Asphalt Roof Granules?
Asphalt residential roofing systems are designed to withstand the elements. However, since the granules absorb much of the heat and harsh sunlight, they can deteriorate over time, especially if they are exposed to persistent heat. In addition, strong storms can erode the granular protective coating and cause the granules to shed. Contact with flying debris and low-hanging tree branches as well as algae and moss buildup may also contribute to granular loss.
If you are starting to notice granules in your gutters and downspouts or bald spots on your roof, this could mean that your roof granules are eroding. Make sure to have your roof checked as soon as possible because granular loss can make your roofing system susceptible to cracking, curling and breaking. This may also result in water intrusion or damage to the underlayment.
If you’re looking for a reliable and trustworthy roofer, Residential Concerns will surely fit your criteria. Call us at (770) 304-1311 or fill out our contact form to request a free quote. We serve customers in Georgia.