A heat blister on an asphalt shingle is a type of blister that is caused by heat exposure. Asphalt shingles are sensitive to high temperatures, and prolonged exposure to heat can cause the asphalt to soften and form blisters on the surface of the shingle. These blisters can weaken the shingle and make it more susceptible to damage from wind and other weather events. To repair a heat blister on an asphalt shingle, the affected area should be cleaned and any damaged roofing material should be removed. The area should then be sealed and repaired with new roofing material. It is important to address heat blisters promptly to prevent further damage and to ensure the roof continues to function properly.
