The granules embedded in asphalt shingles—which happen to be the most popular type of roofing material in the country—shield them from ultraviolet rays, which can cause premature aging. Does that mean you should be concerned about granule loss? The short answer is it depends on the degree of granule loss.
Mass-Tech Roofing and Building Co., your trusted roofer, elaborates further below:
Why There’s No Need to Be Worry About Minor Granule Loss
A certain degree of granule loss is expected over the course of an asphalt roof’s lifespan. That’s why manufacturers embedded up to 40% more granules in their asphalt shingles. As such, minor granule loss won’t leave your roof vulnerable to UV damage.
When Should You Be Worried About Granule Loss?
Granules in your gutters and bald spots on your asphalt roof are signs your roof has lost too many granules and you’ll need a roof replacement soon. Without these protective granules, it’s only a matter of time until cracks start to form on your roof.
What Are the Usual Suspects Behind Granule Loss?
- Age – The granules’ adhesion to the surface of asphalt shingles weaken as they age. And as a result, granule loss becomes more extensive over time. How long do asphalt shingle roofs usually last? The average lifespan of a residential asphalt roof is 20 years, but it varies depending on the type of shingle installed. For instance, three-tab asphalt shingles usually only last 15 to 18 years while architectural asphalt shingles can last 24 to 30 years.
- Installation errors – It’s natural for aging asphalt roofs to suffer excessive granule loss, but not roofs that were only recently installed. If your newly installed asphalt roof starts shedding an excessive amount of granules, it might not have been installed correctly. To avoid installation errors, always vet a roofing company before hiring them.
Mass-Tech Roofing and Building Co., a family-owned company with an A%20 rating with the Better Business Bureau®, offers a wide range of professional exterior services. To get a free estimate, call us at (781) 826-7663 or fill out this form.