If an outside contractor or another professional finds small dark spots all over your store's roof, you may wonder if the spots will cause problems for your store. If blisters caused the spots on your roof, it should concern you greatly. Roof blisters, or blistering, occur when air becomes trapped beneath your shingles and burst. The burst blisters can leave your roof and store open to water damage and other issues over time. You can keep blisters from ruining your roof and store with the information below.

Why Did Your Roof Blister and How?

Roof blistering can be a serious issue for building owners today. Blisters can grow or expand large enough to damage a roof beyond repair. If you find blisters before they pop, or burst, you can keep them from severely damaging your roof.

As mentioned above, blistering occurs when tiny pockets of air develop below the surface of a roof's shingles or top layer. Blisters can eventually fill up with rainwater during the year. If the pockets of air and water become hot, they can expand, burst, and create small dark spots on the roof's surface. 

Some blisters can remain on your store's roof throughout the warm season. However, once the weather cools down or becomes cold, the water inside the blisters can freeze. If the frozen water inside a blister thaws, it can create a hole or leak in your roof. The leak can push water into your store's ceiling over time.

If the blisters on your roof concern you, speak to a commercial roofing contractor today.

How Do You Repair a Blistered Roof?

A commercial roofing contractor will need to inspect the blisters on your store's roof before they offer the right services to you. If the blisters didn't create leaks in your roof, a contractor may only need to replace the shingles or top layer on your roof. The new layer should keep water out of your store during the year.

If the blisters burst and created holes in your roof, you may need to replace your store's entire roof. In this case, you may want to consider replacing your roof with upgraded material, such as a thermoplastic roof membrane. The membrane creates a single layer of protection that may keep blistering at bay during the year. A contractor can go over the best types of replacement systems for your roof during the visit.

For more information on commercial roofing, contact a company like Atlas Roofing & Construction.

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