Let’s take a look at the differences between roof blistering and hail damage. Knowing how to identify the type of roof damage can make all the difference in the world, as most insurance companies will cover hail damage but not roof blistering.
What Is Roof Blistering?
Roof blistering is essentially exactly what it sounds like. The shingles will develop raised dimples on the surface. This is a result from either poor manufacturing, poor installation, or wear over the years. It is a natural progression in the lifespan of shingles, but blistering should not occur during the warranty period.
Blistering is much harder to identify after an extreme weather event has occurred. For example, after a hailstorm, the blisters will be mostly popped due to being struck by the hail. This can closely resemble the pockmarks of hail hitting your roof. One slight visible difference is that popped blisters will feature a slight raise around the divot where the blister had formed.
What Is Hail Damage?
Hail will ultimately leave divots in your roof shingles, with some areas appearing bare where the granules have been knocked away. There will be no visibly raised area around the pivot, just a few missing granules and possible dents in the substrate material of the shingle.
Hail damage is difficult to see from a distance, but this damage is a problem no matter what. Damaged shingles may eventually fail earlier than expected. This will allow water to get to the wooden structure of the roof and cause leaks inside the home.
Differences Between Roof Blistering And Hail Damage
Hail can reduce the lifespan of your roofing system and even cause damage down to the wood if it comes down hard enough. Shingle blistering is a condition that is the result of old age, poor manufacturing, or poor installation. Blistering can look at lot like hail damage.
Hail storms can pop most of the blisters, which leaves behind small craters that look like divots created by hail. The difference between the two really matters to insurance companies, as there is no coverage for blistering. Most companies will cover hail damage, though.
To identify the type of damage, homeowners should check the flashing and vent covers for dents from hailstones. Also check the gutters to see if there is any hail present. There should still be a few unpopped blisters on the roof, as a hailstorm is unlikely to pop each and every blister on your roof.
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