Hebron Roofing: Article About Roof Blisters
Asphalt shingles are one of the most widely used roofing materials in the United States today. Moisture trapped either within the shingle itself during the manufacturing process or beneath the shingle during the roof installation process can lead to the formation of small, pitted holes called blisters.
While blisters don't lead to leaks, they can impact the longevity of your asphalt shingles, leading to the need for more frequent roof repairs. They're also an aesthetic issue. Shingles with blisters have a tendency to separate off the roof base, and when the blisters pop, they create pits in shingles that are clearly visible. Blisters ruin the visual appeal of your roof and can lead to further damage if not repaired. A Hebron roofing company can help you determine whether you need to think about repairing your blistered roof.
Though manufacturing defects in shingles may predispose them to blister, blisters are specifically caused by inadequate roof ventilation. When a roof is exposed to intense heat without adequate ventilation, any moisture trapped within or around a shingle will evaporate, thereby causing the formation of a blister. Poor attic ventilation can also attribute to the formation of blisters.
The roofing experts at AnyWeather Roofing of Hebron KY can assist you with any questions regarding residential roofing or commercial roofing.
Blisters typically appear within the first 18 months after new shingles are installed. If the blisters accompany the loss of mineral granules, the asphalt matting around the shingle appears to be deteriorating or the blistered areas show fatigue cracks, these are signs that the structural integrity of your roof may be in jeopardy, and repairs may need to be undertaken.
Since roof blisters are unsightly, you may also want to have them repaired if you're thinking of putting your house on the market any time in the near future.
Shingles will not need to be replaced over the entire roof, but they will need to be replaced within an 18-inch margin of the blistered area so that there's adequate space to prep the underlying area when the new shingle patch is applied.
The blistered area must be carefully removed. The underlying area must be prepped to help ensure that moisture won't be trapped beneath the new shingles. Any damaged or wet insulation must be removed and replaced with new insulation that's the exact thickness of the insulation on other parts of the roof.
All loose granules and other debris must be cleaned off the surface before the new shingles are attached. The new patch should match the old shingles on the roof as closely as possible.