Asphalt shingles remain the top roofing choice available today–and their popularity is not unearned. They are cost-effective, versatile and easy to install. Plus, they can provide up to 20 years of great weather protection. But much of your asphalt roofing’s longevity and performance depend on its granular surface. That’s why you should be concerned when your shingles start shedding their granules. Expert Contracting, one of the trusted roofing companies in the area, provides more details about asphalt shingle granules.
What Exactly are Shingle Granules?
They are the most visible aspect of the shingles–a coating of finely crushed minerals over the asphalt (the main weather-resistant material) and their fiberglass mat. The granules are processed into a wide range of colors via ceramic firing to give them that vibrant, long-lasting hue. Asphalt shingle granules may come with specific features, including impact damage resistance and algae prevention. Some even have reflective properties to keep the roof “cool” and energy-efficient.
What Do They Do?
But the main function of shingle granules is to keep the main asphalt layer from being exposed to the elements. They help ensure that rainwater is shed off your roofing system. And because these granules are made of crushed stone, they also provide ultraviolet and fire resistance. It’s normal for shingles to lose their granules over time, but if you find an excess amount of them inside gutters and downspouts, that usually indicates a prompt roof replacement.
What Happens When the Granules Erode?
This usually means the asphalt roofing system is nearing, or already past, its service life. Shingle granule loss may also occur during a major weather event. Hailstones, for instance, can knock the granules off your shingles. The same goes for wind-blown debris. If you have tree branches hanging over your roof, their tips might brush or scratch against the roof surface, loosening the granules. What this leads to is a roofing system that has lost its weather resistance, making it more vulnerable to leaks and other types of weather damage.
Aside from roof repair, Expert Contracting can also work on your new roof installation. When there’s already excessive shingle granule loss in your asphalt roof, just turn to us and we’ll determine the most effective solution. We serve the areas in and around West Seneca, NY. Call us today at (716) 572-7303 or fill out this contact form to schedule your roof evaluation.