FACTS

1. Trapped Moisture. Blisters will form on a roof if moisture is trapped in the shingle during the manufacturing process. The moisture trapped in the shingle rises to the top as the sun heats it, causing blisters on your roof.
2. Insufficient Ventilation. Inadequate ventilation is the most typical cause. The temperature of your roof and attic will rise if there isn’t enough ventilation. Blisters can form if the shingles are exposed to too much heat.
3. Poor Workmanship. Roof blistering is caused by improper installation. Wrinkles, leaks, and blisters can occur if […]

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