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Blistering Shingles 101

What Makes Asphalt Shingles Blister?

Asphalt shingles are made up of three layers: the paper or fiberglass support backing, a layer of asphalt, and a protective granular coating. Sometimes production errors cause moisture to trap within these layers", says a Roofer in Auburn. During a hot day, this captured moisture expands and can contain vapors from the scorched asphalt layer, concluding in blisters. It should be noted that blisters are different than impact damage, as impact damage has depressions around the affected region, while those around blisters will be perfectly flat.

Blisters can develop more rapidly from poor attic ventilation. Captured heat in the attic can increase a roofs temperature to the point where it can produce more blisters. Other areas such as the eaves and the siding that are near theattic, can also be damaged by the trapped heat.

Preventing Blistering Shingles

Professionals for Roof Repair in Auburn recommend choosing quality asphalt shingles during a roof replacement or new construction project to help deter blisters, as a high-quality shingle may be strong enough to at least bypass blister popping. After the vapors escape and the moisture dissipates, the blisters should vanish without leaving any substantial damage to the shingles,but until this processoccurs they can still pop from impact.

Your attics ventilation is an important area you should look at. Blistered shingles can be always be replaced, but if the primary cause isnt determined, you will probably have the exact same problems down the road. Several homes we see as a Roofing Contractor in Auburn are surprisingly insufficient in attic ventilation. There is also agood possibility the insulation of your home could be damaged, extremely hot indoor areas, and higher energy bills during summer if the ventilation is poor. Ice-dams can form and possible structural damage from the captured heat and condensation could also occur. Your roof should have vents installed at the ridges, as well as at the eaves for proper venting. If your roof is ready for a replacement, make sure that proper attic ventilation is incorporated into your new roof.

For More Information Call Bates Roofing Today at (253) 473-0675

You can also use our contact form to make an appointment. We serve Bonney Lake, Federal Way, Lakewood, Puyallup, Tacoma, and the surrounding areas.

Posted by: Admin
February 8, 2019
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