4 Reasons Behind Roof Shingle Blisters

11 August 2022
 Categories: , Blog


Asphalt roofing is one of the most popular roofing options today. Most people prefer them because they are inexpensive, easy to install, and last fairly long. But just like all other roofs, asphalt shingles suffer damages such as blisters causing your roof to look unattractive. This bubble-like effect is formed when the adhesive under the shingles is lost and can turn into a major roofing problem if not addressed on time. To get rid of them, you need the services of a qualified roofing contractor.

Here's why this might be happening.

DIY Installations

Even if you have successfully fixed a number of things in your home, a roof installation is not something you want to take upon yourself as several things could go wrong. For instance, if you fail to fix the asphalt shingles properly or the adhesive is not strong enough, the shingles may soon start developing blisters and, in some cases, develop permanent damage. Therefore it is safe to conclude that no one else should handle asphalt shingle installations apart from an experienced roofing contractor. 

Trapped Moisture

Asphalt shingles have exceptional moisture resistance. However, when it gets too hot, the shingles will expand, causing them to loosen up and create gaps between them. If this happens under humid conditions, the gaps created will allow in moisture, resulting in blisters. Your roofer can address this problem by installing roof vents to help the moisture evaporate so the shingles won't expand. 

Inadequate Ventilation

Any heat that ends up in the attic should be eliminated outside. Otherwise, excessive heat will create an unbalanced pressure between the air inside the attic and the air outside. In turn, the shingles will become too hot and expand, again leading to the previous scenario where moisture gets trapped between the shingles leading to blisters. The only solution is to call your roofer to come and ensure proper ventilation in the attic so shingles won't expand. 

Too Much Heat from the Sun

There are times when the shingles experience too much heat, causing them to blister. Sometimes the situation can get so bad that even the vents cannot help much in cooling the shingles. You may need to redesign the vents in such a case. Additionally, in case of a replacement, your roofer will take time to ensure the vents are effective.

If you want to minimize the occurrence of blisters on your roof, consider investing in regular inspections and sealants. Additionally, your attic should be well-ventilated at all times. Finally, call a roofing repair contractor, such as Sota Ridge, for repairs before things get out of hand.