What Makes Asphalt Shingles Blister?

Summers in North Florida can do a number on your roof. From May 1 to November 1 we experience scorching heat, heavy rains, and massive summer storms (and hurricanes!). High quality asphalt shingles are designed to sustain even the worst weather, but cheaper shingles and improper installation can cause them to curl, crack, or even blister. If you notice blisters on your shingles, call a roofing company who specializes in asphalt shingle repair. Here are the causes of asphalt shingle blisters and how to address them.

Trapped Moisture

Blisters on the surface of the shingles form when moisture gets trapped inside the shingle. This moisture can come from the environment and even from the very beginning, during the manufacturing process. The moisture accumulates and the heat and sunlight cause it to expand.

Inadequate Adhesives

Improperly applied shingle adhesive will let moisture seep under the tiles. Over time the moisture damage will accumulate and evaporate when exposed to high temperatures, causing blistering. The accumulated moisture damage can also lead to other forms of structural damage. Does your roof have moisture damage? Get a professional roofing company who specializes in asphalt shingle repair to inspect it before things get worse!

Intense Heat

Whatever moisture that accumulates wouldn’t evaporate without exposure to heat. Excessively high temperatures, due to a lack of shade from trees or weather that’s just searing, will a toll on shingles’ materials. There’s also another reason for heat damage…

Poor Roof Ventilation

A roof that has poor ventilation can get pretty hot. It can reach a point where the heat is so high that shingles will deform and blister outwards. Blisters are usually caused by poor ventilation of the roof system. Aside from the shingles, other components of the roof, even the structure of the upper floors, can be adversely affected by such high temperatures. A properly ventilated attic can do a lot to prevent this type of blistering and other kind of damage from occurring.

Patch Up

Individual or small scale blisters can be patched up. Tiles can be quickly replaced here and there. If this is done promptly, the damage can be limited and further deterioration can be halted. If a homeowner takes his or her time, the damage will progress and other issues besides blistering will pop up. Speaking of popping, if the blisters break, there’ll be even more moisture damage! So better get blistered shingles fixed before it gets worse. Nobody wants a roof that looks like a checkerboard.

If you see any blistering, curling, or cracked shingles on your roof, call us today for a free inspection. We will help you determine if asphalt shingle repair or replacement is necessary. We’re proud to be a GAF Master Elite Certified roofing contractor serving the Greater Jacksonville area. Contact us today at 904-657-0880 to schedule your inspection!