Asphalt shingles are still the undefeated leader for American households. They are affordable, they look great, and they’re effective and energy-efficient for a long time. If an American home is getting a new roofing system, chances are it’s asphalt shingles.
Asphalt shingles, however, are like other roofing materials in that they have certain weaknesses. One of the most common asphalt shingle problems is blistering.
Why Do Shingle Roofs Blister?
Asphalt shingle blisters can affect roofs of any age. Though blistering is more common in older roofs, it’s been known to happen to roofs that have recently been installed.
Shingles blister due to two main reasons:
The roof lacks ventilation: Heat is trapped in the attic if the roof doesn’t have enough ventilation. When this happens, the shingles get baked, leading to problems like blistering.
The shingles have trapped moisture: Installed shingles are not supposed to harbor moisture. This usually happens before, when the shingles are being manufactured. If there is moisture in the environment, and it gets trapped in the shingles, once the shingles are installed and exposed to heat, the moisture expands. This can lead to blistering.
When Is This Bad?
Not every case of shingle blistering is a cause for alarm. If the shingles retain their protective granules, they will continue to protect your home for a long time.
However, if the blisters pop, they will dislodge granules. Shingles lose granules over the years, but with popped shingles, they lose granules almost instantly. Popped shingles compromise roof integrity and shorten shingle life. It’s probably time to call a pro for roof replacement services.
How Can I Fix the Problem?
Even if your shingles are new and do not exhibit any problems, it’s best to talk to your contractor about your attic ventilation. They can do something to correct poor ventilation.
If you notice shingle blisters, remember not to let anyone walk on your roof as this can pop the blisters. As long as they don’t pop, your roof will be fine. Don’t let overhanging tree branches scratch or fall on the roof; call someone to trim the trees that are too close to the house.
There isn’t anything you can do if a hailstorm hits your area. Hail is more than likely to pop shingle blisters. This is when you need a professional contractor to replace your shingles.
To extend the life of your shingles, it’s best to remember these:
Don’t Go Cheap
Always buy top-quality shingles from known manufacturers and have a licensed professional do your roof installation. They will provide you with warranties for workmanship and material.
Have Your Roof Inspected Regularly
Regular inspections can prevent problems from developing or getting worse. If the inspector informs you of blistering, you have an opportunity to nip the problem in the bud by having affected shingles replaced. An inspection can also determine whether your attic is getting enough ventilation.
Renovation Team offers roofing and vinyl siding installation. Call us today at (636) 939-1061, or use our form to get your free quote. We can help you in Chesterfield and in other areas around St. Louis, MO.