Two common issues that often get mixed up are hail damage and blistering. Though they might look similar at a glance, they originate from different causes and can have varying effects on your roof’s lifespan.
In this blog about hail damage vs blistering, we’ll discuss their main differences, helping you identify which your roof might face and what steps you can take to address it.
Hail damage occurs when hailstones impact your roof, leading to various types of harm depending on the size and speed of the hail. These complex, icy balls can significantly damage roofing materials, particularly if the shingles are already compromised.
Dents or bruises are visible on asphalt shingles, where the protective granules might be knocked off, creating dark spots or bald patches.
Cracks or splits: Older shingles are particularly vulnerable, and the impact of hail can cause them to crack or even break.
Granule loss: While some granule loss happens naturally over time, hail can accelerate this, potentially exposing the underlying materials.
It’s important to remember that hail damage isn’t always immediately apparent. Sometimes, a professional inspection is not just required, it’s the best course of action. It can uncover the extent of the damage, providing you with a clear picture of what needs to be done. If ignored, hail damage can lead to leaks, and other problems.
Blistering is a different issue arising from within the roofing materials. It typically occurs in asphalt shingles when moisture gets trapped inside them, or the adhesive fails.
Raised bubbles: Blisters appear as small, raised bubbles on the surface of the shingles. Over time, these bubbles may pop, leaving small circular openings.
No granule displacement: Unlike hail damage, blisters don’t usually cause granule loss unless they pop; in this case, the affected area might appear slightly worn.
Aging shingles: Blistering is more common in older roofs or areas with poor ventilation, where excessive heat can exacerbate the issue.
Blistering is often more of a cosmetic problem than a structural one, but it shouldn’t be ignored. If the blisters pop, they can expose the underlying layers of the shingle, making your roof more susceptible to water damage and reducing its overall lifespan.
Now that you understand the basics of hail damage and blistering let’s highlight the key differences between these two types of roof damage:
Hail Damage: Caused by external factors—specifically, hailstones striking the roof.
Blistering: Caused by internal factors such as trapped moisture or excessive heat within the shingles.
Hail Damage: Results in dents, cracks, and loss of granules. The damage is often random and widespread, depending on the severity of the hailstorm.
Blistering: Manifests as small, raised bubbles that may pop, revealing the shingle underneath. The pattern is usually more uniform and tends to occur in specific areas of the roof.
Hail Damage: This can lead to severe issues, including leaks, mold, and structural damage.
Blistering: Typically affects the appearance more than the function, but popped blisters can eventually lead to water damage.
Hail Damage: Often requires immediate attention and repair. In some cases, the roof may need to be replaced, especially if the damage is extensive.
Blistering: Prevention involves proper ventilation and installation practices. Repair usually involves replacing the affected shingles, but widespread blistering might necessitate a complete roof replacement.
Keep an eye on your roof, especially after storms. If you notice anything unusual, don’t hesitate to call a professional. Remember, some damage, especially with hail, may not be immediately visible to an untrained eye, so a professional inspection is crucial.
An experienced roofer can accurately diagnose the issue and recommend the best action. A trusted roofing professional is essential to maintaining your roof’s longevity and integrity.
Ensure your roof is adequately ventilated and shingles are installed correctly for blistering. For hail, consider impact-resistant shingles if you’re in an area prone to hailstorms.
While both can affect your roof, they require different approaches to repair and prevention. It’s important to note that repairing hail damage can be costly. Blistering, on the other hand, is often more of a cosmetic issue.
If you’re unsure about the condition of your roof, it’s always best to consult with our professional roofers, who can provide a thorough inspection and guide you on the best path forward.
