What Causes Residential Asphalt Roofing Blisters In Sammamish, WA

January 9, 2024

What Causes Shingle Blisters On Residential
Asphalt Roofing In Sammamish, WA?

How To Prevent Shingle Blisters And Protect
Your King County Area Home

Protect your home and know what causes shingle blisters on residential asphalt roofing in Sammamish, WA.

Asphalt shingle roofing that is properly installed and maintained should stay smooth and flat. Blistering shingles are definitely a cause for concern.

Here at RoofSmart, we’re roofing nerds – so we’ve dealt with shingle blisters more than a time or two. We know that most residential asphalt roofing issues start from details you can’t see. So, we use our tried-and-true “eggshell method” for roofing installations to prevent issues like shingle blisters.

Over the years, we’ve picked up lots of tips and tricks to deal with asphalt shingle blisters – and prevent them in the first place.

What Are Shingle Blisters On Residential Asphalt Roofing?

So, what are shingle blisters? And why are they such a big deal?

Shingle blisters occur on residential asphalt roofing when the shingles lose their connection to the roof below.

A properly installed roof has shingles that are solidly adhered to the roof below. When shingles start blistering, pockets under the shingles form. These pockets show up as “blisters” on the roof surface.

Why are shingle blisters an issue? Some installers consider shingle blisters just a cosmetic problem.

However, an uneven roof surface deteriorates much faster than a nice flat surface. Over time, blistered shingles might not protect your home as effectively, and you’ll need a roof replacement.

Top Causes Of Shingle Blisters On Residential
Asphalt Roofing In Sammamish, WA

So, shingle blisters are a concern. But what causes an uneven roof in the first place?


Well, moisture is a big factor. Moisture can get trapped under the shingles from improper attic ventilation or manufacturing issues.

Installation Errors

The other common cause? Installation errors. If every residential asphalt shingle isn’t properly secured to the roof, those missed details show up as shingle blisters later on. That’s why it is key to pick installers who know what they’re doing – and care about getting the details right.


Sometimes, blistering asphalt shingles are just a symptom of an aging roof. Over time, asphalt shingles just don’t adhere to the roof as well. Weather, sun, and time all take an unavoidable toll on a roof. However, proper installation and maintenance always extend the lifespan of your roof.

How To Prevent Shingle Blisters On Residential
Asphalt Roofing In Sammamish, WA

The absolute BEST way to prevent shingle blisters in the first place is to hire expert roofing installers.

Installation really is key to residential asphalt roofing that lasts.

It doesn’t matter how great a shingle is if it’s not installed properly. Even the best shingle doesn’t protect your home if it’s not properly attached to your roof. And when it comes to roofing, even a small issue can cause a chain reaction of damage to your roof.

Choose Expert Installers For Residential Asphalt
Roofing In Sammamish, WA

Professional installers will inspect your roof before even starting a residential asphalt roofing replacement. They’ll check on the ventilation system in your attic and the layout of your roof, and they’ll know how to spot shingles with issues and toss those out.

Our team specializes in getting all those installation details right. Our dedication to proper installation won’t just prevent shingle blisters. It will keep your roof functioning at its best for years to come.

Investing in a roofing company that knows the ins and outs of residential asphalt roofing will save you time and money in the long run. Make sure the details are managed the first time to prevent unnecessary repairs or even roof replacement later.

You Have Shingle Blisters On Your Roof
In Sammamish, WA: What Next?

If you have an older roof, chances are you’ll notice some uneven surfaces over time. Or, maybe you just bought a home in the Kings County Area and have noticed a couple of trouble spots on the roof.

Regardless of the reason, if you notice shingle blisters, schedule a roof inspection. Especially if the shingles are blistering over a large portion of your asphalt roofing, shingle replacement or full roofing replacement might be necessary. Those little details do matter!

Our team can look at your roof and figure out what is causing the shingle blisters and the plan of action. Replacing blistering shingles might be the way to go, or a roof replacement might be in the cards.

Protect your home and schedule a free roof inspection with RoofSmart today.

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