Asphalt Shingle Blisters: Causes and Prevention

Blistering is an asphalt shingle roofing problem that is frequently misdiagnosed as hail damage. It is one of the most common problems that residential and commercial roofing contractors are called to repair, especially during the summer.

But why do asphalt shingle roofs blister in the first place, and what can be done to prevent or solve the problem? We’ll look at how to diagnose the problem in this article so you can avoid costly repairs and minimize roof failure.

Trapped Moisture

If moisture is trapped in or under the shingle during the manufacturing process, blisters may form on the roof. When trapped moisture in your roof is exposed to the sun, it warms up and produces blisters. This is why you must hire a skilled roof replacement contractor who is certified by a reputable manufacturer. This gives you peace of mind knowing that your new roof is high-quality.

Poor Roof and Attic Ventilation

A lack of roof ventilation results in excess heat and moisture buildup inside the attic, which then increases the likelihood of asphalt shingle blisters. Minor ones may soon pop and dislodge the shingles’ protective granules. If this happens, UV radiation will degrade your roof further until it shows signs of deterioration.

How to Prevent Shingle Blistering

Fortunately, asphalt shingle blistering can be prevented by following these tips:

• Keep up with roof maintenance. At least once a year, especially after a major storm, you should schedule roofing maintenance with a reputable roofing company. If they say you need a roof repair, have it done right away. Blisters and leaks are more likely to occur if you wait too long to remedy them.
• Ensure proper ventilation. A thorough roof inspection can help determine whether it is adequately ventilated or not. Make sure that the intake and exhaust vents aren’t obstructed to allow fresh air to enter your attic and push the hot, moist air out. Proper ventilation prevents shingle blisters and extends their lifespan. In addition, it prevents mold formation that might harm your indoor air quality.

STARR Roofing & Gutters is a homegrown roofing company dedicated to serving our customers in Texas Hill Country and the nearby areas with stellar roofing services! We are a GAF Certified Contractor and have received the Angie’s List Super Service Award.

Call us today at (512) 736-6539 or fill out this contact form to schedule your consultation.