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Technical Papers

Granules in the Gutter? Your Shingles Are Telling You Something

Monday, May 26th, 2025 by Evie Rozendaal

 

What Are Granules and Why Do They Matter?
Asphalt shingles are coated in tiny mineral granules that serve several important purposes. They give shingles their color, provide UV protection, and add an extra layer of durability to the roofing system. So when you start seeing granules collecting in your gutters or washing out of your downspouts, it’s not something to ignore.

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Is Granule Loss Always a Problem?
Not necessarily. A little bit of granule loss is totally normal, especially right after a new roof is installed. Think of it like shedding from a new carpet. It’s only when granule loss becomes consistent or heavy that it’s time to investigate further. Large amounts of granules mean your shingles are no longer protected from the sun’s UV rays or daily wear and tear, and that can shorten the life of your roof.

 

What Causes Excessive Granule Loss?
Here are a few of the most common culprits:

  • Age: Older roofs naturally lose more granules as the adhesive bond breaks down over time.
  • Poor Ventilation: Heat buildup in your attic can bake your shingles from below, weakening the bond and accelerating granule loss.
  • Storm Damage: Hail and strong winds can bruise, crack, or loosen shingles, leading to granules being knocked loose.
  • Low-Quality Shingles: Not all shingles are made equal. Cheaper options tend to lose granules faster than premium shingles like the IKO Dynasty shingles we install.

 

When to Worry: Warning Signs to Watch For
If you notice any of the following along with granules in the gutter, it’s time to schedule an inspection:

  • Bald patches on shingles
  • Shingle curling, cracking, or blistering
  • A roof that’s 20+ years old
  • Dark streaks or uneven color on the roof

 

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The Fix: How We Can Help
At Brown Roofing, we know how to assess whether your granule loss is normal or a sign your roof is on its last legs. If it’s time for a replacement, we’ll walk you through your options, including shingles backed by our trusted 50-year warranty through Klaus Roofing Systems. We only install premium shingles that are designed to resist granule loss for the long haul.

 

Still Not Sure What You’re Seeing?
If you're cleaning your gutters and finding what looks like coffee grounds or sand, don’t guess. Give us a call at (203) 723-1372 or sign up online for a free consultation today. An inspection now could save you from bigger roofing headaches down the line.

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