Shingle health

Granule Loss on Shingles: What It Means and What You Can Do

What granules in your gutters can mean for an aging asphalt shingle roof.

4 min readUpdated October 15, 2026

Shingle granules collected in a metal gutter below worn asphalt shingles

Granules are the small stone-like particles on top of asphalt shingles. Finding them in your gutters is a sign shingles are aging. Rejuvenation helps shingles retain their granules, and the treatment is backed by a 5-year transferable warranty. See roof rejuvenation.

Why granules matter

Granules cover the surface of the shingle. As shingles dry out, they can lose their hold on those granules.

Where to look

Check gutters and the ground below downspouts. Bare or smooth-looking patches on shingles, seen safely from the ground, are another clue.

What to do next

If the roof is not leaking and is largely intact, request an estimate to see whether rejuvenation fits.

Frequently asked questions

Are some granules in gutters normal?

Some shedding happens as roofs age. Ask us to look at your roof if you are noticing it.

Does rejuvenation help with granules?

The treatment is backed by a 5-year transferable warranty.

Learn about Roof Rejuvenation

Want Ken to look at your roof?

Request an estimate and ask about our current 20% promotion.