Asphalt shingles are highly durable, but they’re not invincible. They can suffer from cracks, splits and blisters. Shingle blistering can happen for various reasons. Learn more about its causes and how it can be prevented in this post.
Why Do Asphalt Shingles Blister?
Blistered shingles are mainly due to the following:
Moisture Trapped in the Shingles
When asphalt shingles are being manufactured, it’s possible for moisture to get inside the shingles and form bubbles later on in their lifespan. After their installation, the shingles naturally get exposed to the sun’s heat, causing the trapped moisture to rise. This is how shingle blisters develop.
Poorly Ventilated Attic
Proper ventilation prevents heat buildup in the attic. If this space is not properly ventilated, the heat would eventually cook the shingles and cause the blisters to form. Over time, the heat will also cause the blisters to pop.
Are Blistered Shingles Bad?
Roof blisters are nothing but a cosmetic issue. As long as the shingle granules are intact, you shouldn’t be concerned. However, since various elements can cause shingle blisters to pop – for example, strong winds and foot traffic on the roof – be sure to ask your roofer to monitor the blisters during inspections. Once shingle blisters pop, the granules will get dislodged, leaving your asphalt shingles unprotected. Significant granule loss can shorten your roof’s lifespan. It means you might need to replace your roof early.
Needless to say, regular roof inspections and maintenance are crucial to the longevity of your roof. Furthermore, make sure to hire a qualified roofer who can take care of your roof.
Willi Roofing Services has many years of professional experience. Our team takes the time to understand your needs so that we can provide you with quality roofing solutions. Call us at (512) 394-8234, or fill out this contact form to schedule a free consultation.