What Are the Most Common Reasons Asphalt Shingles Blister?
Clint • January 12, 2023

Asphalt shingles remain the most popular option for residential properties. With proper installation, regular roof inspection and maintenance, they can last beyond their expected lifespan. Moreover, the more you know about the common problems this material experiences, the better you can avoid them and save on repair costs. One of the most common issues you should be aware of is blistering.


Read on to find out possible reasons asphalt shingles blister.


Common Reasons Asphalt Shingles Blister

Insufficient Ventilation


Your roof needs proper ventilation for it to last long and function efficiently. Ventilation eliminates hot air in your attic and allows fresh air to enter. If your roof and attic are not well ventilated, heat and moisture will build up and speed up the deterioration of shingles. Other problems it can cause include ice dams, mold and mildew growth, and sagging decking.


Manufacturing Defect


Sometimes, during manufacturing, moisture gets trapped within the shingles. Asphalt shingles with this manufacturing defect are more likely to blister. As the sun heats the roof’s surface, the moisture in the shingles will cause blisters to develop.


Should You Be Worried About This Problem?

Understandably, many homeowners are worried about this roofing problem. You may not need to contact a roof repair expert yet if blistered shingles still have their granules intact. They should not cause issues with the roofing system or its lifespan.


However, time will come that the blisters on the shingles will pop, and that’s when you need to contact a roofer. Once the blisters pop, the granules on your shingles will loosen and eventually fall off. When this happens, your roof will lose its protection against the sun. It will then lead to even more granular loss, leaks, and other forms of damage.


At StormROOF Systems, LLC., we’re here to assist with your home’s roofing needs. We specialize in roof replacement, repair and storm damage. Give us a call at (470) 300-1768 or fill out our contact form to get a free estimate.

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