The Primary Causes Of Membrane Roof Blisters

The Primary Causes Of Membrane Roof Blisters

When the weather changes during the seasonal transition shift the temperature, you may notice that your roof membrane has started to blister. Blisters appear on a variety of different types of commercial roofing systems. However, blistering is most often found on the roofing membranes. Blisters are caused by a number of factors and can carry some risks. Luckily, working with a commercial roofing company, these blisters are easy to fix before they become a large problem.

What Is A Membrane Roof Blister?

Membrane roof blisters are a raised area on the roofing material that looks like a blister. The raised area typically fills with air, but in some cases can fill with water from excess rains. The longer you leave a roof blister the larger it can grow. This gap can expand and contract as a result of temperature changes, causing the blisters to become even more damaging and creating more blisters.

What Causes Roof Membrane Blisters?

There are three primary causes of roof blistering. The first is moisture which degrades the membrane material, making it swell. The second is poor installation of the membrane material. If the membrane is not properly attached, it will pull from the roof surface in response to the heat, causing a blister. Finally, poor ventilation causes blistering because of the build-up of moisture and trapping of air. These causes are all exacerbated by temperature changes, not just seasonally but also throughout the day. When you notice blistering, it’s a good idea to check the blisters at different times of day when there are different temperatures to make sure you understand the severity of the blistering.

How To Prevent Roof Blistering

There are a number of things commercial building owners can do to prevent blistering. First, they need to ensure they work with a certified and experienced roofing company like Gulf Tex Roofing and Services for proper installation of the membrane material. Next, they need to prevent the build up of excess moisture and water with a functional drainage system. Finally, the best measure you can take is to have your roof regularly inspected. Roof inspectors will see the signs of blistering before they happen and will remedy the situation immediately to prevent long term damage.

How Are Roof Blisters Repaired?

Depending on the severity of your roof blisters, there are a couple of options for repair. The first is to cut away the membrane that is pulling from the roof and replace it. The second is to patch the area using bitumen. Typically this is done by cutting an x-shape over the blister and then applying the bitumen. Small blisters should always be inspected, but some don’t need immediate repair as there are some cases where they won’t cause damage.

At Gulf Tex Roofing and Services we can help you identify and repair roof membrane blisters. We also offer an inspection and maintenance program to help deal with roofing issues before they become expensive problems. To learn more about these services, give us a call.