As a locally trusted residential roof replacement contractor in the area, we know how important it is to have a sturdy roof to protect homes. With regular maintenance, its longevity can be extended, and money can be saved in the long run. But sometimes, there are some roofing issues that happen unexpectedly, such as blisters on shingles. You may probably notice that some of your roof’s shingles have blisters. Dealing with this is not complicated to do, but let’s have a look first on what can cause shingles to blister.