Is Granule Loss in Asphalt Shingles a Big Deal?

Granule loss is a common phenomenon with asphalt shingles, but in some cases, it can signal deeper roofing issues. Read on as Diamond Roofing Specialists, Inc. takes a closer look at the many causes of granule loss and what it could mean for your roof.

The Role of Granules in Asphalt Shingles

To understand granule loss, let’s first explore why granules are essential. Asphalt shingles are made of two layers:

A backing material (either fiberglass or organic recycled paper soaked in asphalt).
A top layer of granules made from crushed, colored rock.

Granules aren’t just for aesthetics; they’re your roof’s first line of defense, shielding the asphalt layer from harmful UV rays and weather damage. But over time, these granules can come loose.

What Causes Granule Loss?

Granule loss can happen for a variety of reasons, both natural and external:

Normal Aging. Even brand-new shingles may lose some granules. This often happens because loose granules weren’t fully embedded during manufacturing. Over time, small amounts of granules will continue to shed as part of the aging process.
Weather Impact. Harsh conditions like hailstorms, heavy rain, and strong winds can cause granules to loosen.
Manufacturing Defects. While rare, defects like trapped moisture can lead to premature granule loss. If this happens, it’s often covered under warranty.

Signs Your Roof Is Experiencing Granule Loss

How can you tell if granule loss is becoming a problem? Here are the key warning signs:

Granules in the Gutters. Finding sediment in your gutters or downspouts is normal, but if you notice an inch or more of buildup, it could indicate significant granule loss.
Bald Spots. If you see exposed asphalt patches on your shingles, it’s a clear sign of granule wear. Light-colored roofs make these spots especially noticeable.

Should You Be Concerned?

Not all granule loss is a reason to worry. A small amount of granules in your gutters is typical, especially after installation or a storm. However, excessive granule loss is a red flag. Exposed asphalt is vulnerable to UV rays, which can weaken your shingles and lead to bigger roofing problems.

If you notice any of these signs, don’t wait to take action. Addressing granule loss early can save your roof—and your wallet—from more extensive damage down the line. Turn to Diamond Roofing Specialists, Inc. for top-notch roofing solutions. Call us at (203) 754-7884, or fill out our contact form to request an estimate.

Kristin Febbriello