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asphalt shingles

Where Did All My Granules Go? A Guide to Shingle Granule Loss

April , 2023 | 6 min. read

By Mitch Owens

Roofing estimator inspecting an asphalt shingle roof

Are you starting to notice that the granules on your shingles are coming off?

Wondering what's causing this issue and what you can do about it?

As a homeowner, it's important to understand the purpose of shingle granules and how they protect your roof from the elements.

We get it, granule loss can be a serious issue that can compromise the integrity of your roof.

At RoofCrafters, we understand how frustrating it can be not knowing the health and longevity of your roof. For 30 years we've been helping educate homeowners so they know all the ins and outs of their roofs. So they feel safe and secure. Now we want to help you.

That's why we've put together this comprehensive guide to shingle granules. 

In this article, we'll cover everything you need to know about shingle granules, including:

  • The purpose of granules
  • The 10 causes of granule loss
  • What you can do to protect your roof from further damage

And hopefully, by the end, you'll have a better grasp on granule loss and an understanding of your next steps.

Why Are Shingle Granules Important for Your Roof?


Ceramic-coated asphalt shingle granules are like the roof's own personal bodyguard - they're there to protect and serve, but they don't get enough credit for it. 

5 benefits of shingle granules:

  1. Protect from UV radiation
  2. Provide fire resistance
  3. Add texture and aesthetic appeal
  4. Provide impact resistance
  5. Make installation easier

roof estimator inspecting an asphalt shingle roof

Think of them as sunscreen for your roof. Just like how UV rays can damage your skin, the sun's UV rays can cause the asphalt layer on your roof to deteriorate over time. That's where shingle granules come in - they act as a shield against the sun's harmful rays, helping to extend the lifespan of your shingles. 

And that's not all - shingle granules also provide fire resistance, and add texture and aesthetic appeal to your roof. The colors help boost your home's curb appeal. And they even provide impact resistance against small hail, wind-blown debris, and other weather hazards. 

Plus, they make installation a breeze by keeping the shingles from sticking together. So, don't underestimate the power of those tiny granules - they're the unsung heroes of your roof!

Until their not!

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The Top 10 Causes of Granule Loss on Your Shingles


While shingle granules play an important role in protecting your roof, they're not invincible. Over time, these granules can become loose or dislodged, leading to granule loss. If you're noticing granule loss on your shingles, it's important to identify the cause so that you can take action to prevent further damage

Top 10 causes of granule loss:

  1. Age and normal wear and tear
  2. Exposure to harsh weather conditions, such as hail, heavy rain, and high winds
  3. Poor installation practices or using low-quality shingles
  4. Defects in the shingles or underlying roofing structure
  5. Improper attic ventilation
  6. Foot traffic on the roof, especially during installation or maintenance
  7. Exposure to extreme temperatures or direct sunlight
  8. Improper storage of shingles before installation
  9. Harsh cleaning practices or using abrasive materials on the roof
  10. Algae or moss growth, which can cause the granules to loosen and become dislodged from the shingles

By understanding these factors, you can take steps to protect your roof and keep your shingles looking their best.

Protecting Your Roof from Granule Loss: Tips and Tricks


It's important to do everything you can to protect your roof from granule loss to ensure its longevity and performance. Granule loss can compromise the structural integrity of your shingles. And leave your roof vulnerable to damage from the elements

roofer installing shingle over ridge vent on a roof

By taking action to prevent granule loss, you can save yourself from costly repairs and replacements down the line. 

Here are some practical tips and tricks for protecting your roof: 

  • Keep your gutters and downspouts clean
  • Install proper attic ventilation
  • Schedule regular roof inspections and maintenance
  • Use high-quality shingles and work with a reputable contractor
  • Limit foot traffic on the roof
  • Trim overhanging branches
  • Clean the roof with a gentle soft wash
  • Avoid power washing or using abrasive materials
  • Take action to prevent algae or moss growth
  • Store shingles properly before installation

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Is your roof old and past its useful life?

Taking Action: Next Steps for Dealing with Granule Loss on Your Aging Roof


Shingle granules are crucial for protecting your roof from the elements. Providing fire resistance, adding aesthetic appeal, and providing impact resistance. By taking preventative measures, you can prolong the life of your shingles and protect your roof from damage.

If you're experiencing a significant amount of granule loss on your shingles. Or your shingles have exceeded their expected lifespan. It may be time to call in a professional roofing company. They will perform a thorough inspection and provide recommendations for repair or replacement. 

Even if you're not sure about the age of your roof. An inspection can help you identify potential issues before they become more significant and expensive to fix. 

At RoofCrafters, we've been helping homeowners like you for over 30 years. We understand that your roof is an essential component of your home's health. And we want to help you make the best decisions for its care and maintenance. If you're experiencing granule loss or other issues with your roof, we're here to help. 

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That's why we've taken the time to write many articles to help educate homeowners about roofing and the issues that can arise over time. Our goal is to provide you with the knowledge you need to make well-informed decisions about your roof's health and maintenance. That way you can enjoy the peace of mind that comes with knowing your home is safe. 

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Mitch Owens

My name is Mitch, and I have over 10 years of roofing experience. I enjoy my career in the service industry because I love helping others take care of their homes and businesses. With over 10 years in the roofing industry, my success comes from my honesty and integrity during my roof inspections. I do my best to listen to the needs of my clients and strive to provide an awesome client experience.