Understanding Granule Loss: What It Means for Your Roof

Granule loss is a common issue that affects many asphalt shingle roofs over time. While it’s a natural part of your roof’s aging process, it can alo signal underlying problems that may need attention.

In this blog, we’ll break down what granule loss is, how to identify it, how it affects your roof, and when you should consider replacing your roof.

1. What is Shingle Granule Loss?

Granules are the small, pebble-like pieces of material that are embedded in asphalt shingles. They serve several important functions, such as:

• UV Protection: They protect the asphalt from damaging effects of ultraviolet (UV) rays.
• Fire resistance: Granules help provide a fire-resistant layer.
• Aesthetic Appeal: They give shingles their color and texture.

However, as your roof ages, or due to other factors, these granules can begin to loosen and shed. This process is known as granule loss.

2. Five Causes of Granule Loss

There are several reasons why granules might start to come off your shingles:

• Aging: As shingles age, the adhesive holding the granules in place naturally weskens. Over time, exposure to the sun and the elements causes the granules to shed.
• Hail Damage: Hailstorms are one of the most significant causes of rapid granule loss. The impact from hailstones can dislodge granules, leaving the shingles exposed to further damage.
• High Winds: Strong winds can also loosen granules, especially if the shingles are already worn or damaged.
• Physical damage: Activities like walking on the roof, tree branches rubbing against the shingles, or power washing can cause granules to loosen.
• Improper Installation or Manufacturer Defects: Shingles that were improperly installed or have manufacturing defects may shed granules faster than normal.

How to Identify Granule Loss?

Granule loss can be difficult to notice unless you know what to look for. Here’s how you can identify it:

• Look for Bald Spots on Shingles: If you spot areas on your shingles that look bare of where the granules have worn away, it’s a sign of granule loss. These areas will often be noticeable in the sun.
• Check the Ground Around Your Home: Granules can end up in your gutters, downspouts, or even the ground below your roof. If you find piles of granules in these areas, it’s a clear indication that granules are shedding.
• Inspect Your Gutters: Granules tend to collect in gutters, especially after storms or high winds. If you find granules in your  gutters, it’s worth inspecting your roof further.
• Roof Inspection: If you’re unsure, it’s a good idea to schedule a professional roof inspection. Roofers can assess the extent of granule loss and check for damage that may require repair or replacement.

How Granule Loss Affects Your Roof?

Granules are essential for protecting your roof. When they start to wear away, your roof becomes vulnerable to several issues:

• UV Damage: Without the protective layer og granules, the asphalt in the shingles is exposed to the UV rays, which can cause it to crack anddegrade more quickly.
• Water Damage: Granules help keep the asphalt waterproof. Without them, water can seep into the shingles, leading to leaks and water damage inside your home.
• Shortened Roof Lifespan: Excessive granule loss means your roof is deteriorating more rapidly. If left unaddressed, this can significantly reduce your roof’s overall lifespan.

When Should You Repalce Your Roof?

While shingle degradation is a sign that your roof is aging, it’s not always an immediate reason for a full replacement. However, there are certain scenarios where roof replacement is necessary:

• Excessive Granule Loss: If you noticve large areas of bare singles or significant accumulation of granules in gutters or around your home, it may be time for a replacement.
• Severe Hail Damage: If your roof has suffered from a hailstorm, and granule loss is widespread, it could lead to significant water damage. In this case, reaplcing the roof might be the best option, especially if the shingles are near the end of their lifespan. A study done by Haag Engineering highlights how hail causes granule loss on asphalt shingles.
• Aging Roofs (20+ Years): Roofs that are more than 20 years old are more susceptible to granule loss and other issues. If your roof is at or near this age, and granules are shedding significantly, it might be time to consider replacement.
• Leaks and Other Damage: If granule loss is accompanied by leaks, sagging, or other signs of damage, it’s important to get a professional assessment to determine if a replacement is necessary.

Conclusion

If you’re noticing granule loss or any other signs of damage to your roof, don’t wait until it’s too late. Protect your home and extend the lifespan of your roof by getting a professional assessment from Pinnacle Exteriors.

Our experienced team can help identify any issues and provide the necessary solutions to keep your roof in top shape. Call us today at (484) 350-6829 for a comprehensive roof inspection and expert advice on your roofing needs.