Roof Shingles Are Blistering

Asphalt roof shingle manufacturers emphasize that blisters on shingles are simply a cosmetic matter and that they do not impact the wear life of the roof nor do they impact the roof shingle warranty.

Roof shingles are blistering.

Blistering only occurs in asphalt roof shinglesas it is a byproduct of manufacturing or installation. The roofing company co takes a look at what causes asphalt shingles to blister and what can be done to prevent it. Like all blisters there comes a time that they will surely pop. When blisters pop on shingle roofs the granules become dislodged leaving the asphalt unprotected from the uv rays of the sun.

Shingles blisters are caused by varicella zoster the same virus that causes chickenpox. Typically asphalt shingles only blister where the exposure conditions on the roof include one or more of the following. There is no fool proof way to prevent blistering. Eventually the affected areas crust over and heal like the rash shown here.

The varicella zoster virus causes it. Shingle blistering as a roof defect. Blisters or blister rash can be identified by inconsistent bubbles rising up from inside the shingle. The shingles are composed of different layers of material.

So at least on some roof shingles rash blisters may indeed be an indication of a reduced life expectancy. The key is when the shingles are installed. Individuals who have suffered chickenpox in the past may suffer an attack of shingles later on in life. Shingles is a disease that causes a painful blistering rash to form on the body and sometimes the face.

Blistering is an asphalt shingle roofing problem that is often mistaken for hail damage and is one of the most common issues residential roofing contractors are called to fix especially during the summer. Shingles causes itchy painful blisters that may take some weeks to heal. As long as the blisters on the shingles keep their granules they will not cause a problem for the roof or longevity of the roof. See blisters on asphalt shingles and our shingle blister photo at left for examples of shingle blistering.

Poor or inefficient ventilation causing the shingles to reach excessive temperatures over 60 c. See shingle hail damage examples for some examples of hail damage where shingle blistering may have been a factor in granule loss. Also if a roof does not have proper ventilation shingles can blister because of intense heat. The whole process may take.

This is the same virus that causes chickenpox. The cluster of blisters that form with shingles fill with fluid pop then start to ooze.