To keep your roof in good condition, it is important to regularly inspect it for common roofing ailments, such as roof blisters.
Roof blisters look just like their name suggests; they appear as raised "blisters" on the shingles of your roof. While some roof blisters are relatively harmless, others need the attention of an experienced roofer. Read on to learn more about roof blisters and what you should do if you spot them:
What causes roof blisters?
Roof blisters frequently occur when moisture gets trapped underneath your roof's shingle, causing it to pucker out and "blister." Another common cause of roof blistering is overheating of your roof; the overheating may happen if your roof does not have adequate ventilation.
Once you notice blisters on your roof, you'll likely observe that their size appears to fluctuate. Roof blisters often increase in size when the weather is warm; this is because the warmer temperatures increase the pressure of the blister, causing it to appear larger.
As the temperatures decrease, the size of your roof blisters will also decrease. The colder temperatures help relieve some of the pressure caused by, the warmer months.
When are roof blisters a problem?
Many roofers recommend a "wait and see" approach for minor roof blisters. If the blister decreases in size during the cold months and does not appear to grow larger during the hotter months, it is likely okay, for the time being.
However, if the blister does not shrink during the colder months or continues to grow during the warm months, this means that moisture and air are entering the blister. As the blister grows, it continues to damage the shingle until the shingle eventually needs to be replaced.
If any of the blisters pop, this warrants immediate attention, as the shingle is now structurally compromised.
Any shingles with problematic blisters or with ruptured blisters should be replaced as soon as possible to prevent further damage to your home and your roof. This makes regular inspections extremely important once you notice blistering.
What steps can you take to prevent roof blisters?
One of the easiest ways to keep roof blisters from occurring is to make sure that a qualified roofer properly installs your roof. You want a roofer who knows the proper procedures to attach the roof and the recommended amount of shingle overlap. Improper roof installation leads to moisture penetration and inadequate ventilation that causes the shingles to blister.
Once you know that the blisters are there, one way to extend the amount of time before they pop is to avoid stepping on the blisters. Keep this in mind when putting up and taking down your holiday lights. Contact a roofing repair service for more information and assistance.