Why Does My Roof Have Curling Shingles?

Florida’s hot temperatures, high humidity and hurricanes can severely damage your roof’s shingles. However, not all damage is sudden or instantly visible. It can take years for the shingles to begin curling and gradually worsen. You may not notice a problem until the curls become more pronounced.

If you notice that the asphalt shingles on your roof are curling, you should contact a professional roofing company in Florida. A roofing contractor can diagnose the extent of the damage and make the necessary repairs to fix the curling and restore your shingles.

What Are Curling Shingles?

Curling shingles have turned up edges that flare. If the edges are all around the shingle, it will look like it is sinking into the roof’s decking. So, you may think that your roof is sagging when the shingles are actually curling.

There are several possible causes of curling shingles, as described below. Regardless of the cause, it is important to address the problem quickly before it worsens and costs you more. If you notice curling shingles, schedule a roofing inspection and repair.

What Is the Difference Between Curling and Buckling Shingles?

Buckling occurs as a result of wrinkling in the roof underlayment. High humidity or water can get underneath the underlayment or other surface, creating buckles that, in turn, cause the asphalt shingles to buckle.

The difference between curling and buckling is that curling occurs along the edges of the asphalt shingle. The edges curl up along the corners or sides of the shingle. Buckling can occur throughout the entire shingle—not just on the edges. Curling and buckling occur for the same reasons.

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Causes of Curling Shingles

Shingles can curl for various reasons, such as:

Poor Attic Ventilation

Poor attic ventilation leads to heat and humidity buildup in the attic and roof interior. Enough buildup can warp the decking or underlayment, causing curling or buckling throughout the roofing system.

Multiple Layered Roofs

During a roof replacement, some contractors may add an overlay over the existing roof. For example, a contractor may install new shingles over the existing shingles rather than removing the old asphalt shingles. Doing so can cause buckling and curling over time because the new shingles are not lying on an even surface.

Improper Installation

Of all the mistakes a roofing contractor can make, one of the most common is not nailing down a shingle. If the shingle corners are missing a nail or the shingle is positioned incorrectly, it will curl up. Too few nails can also cause shingles to become loose, leading to roof leaks.

Improper Shingle Alignment

Asphalt shingles contain an adhesive that contractors call a “tar line.” The tar line can act as a guide to keep all the shingles aligned along the roof. If the shingles are properly aligned, they are more likely to adhere to the surface and less likely to curl up. Proper alignment keeps shingles from flying off the roof in high winds.

Defective Shingles

The average roof has 30 squares that are 100 square feet each. This roof size requires 90 bundles of three-tab shingles. A bundle can contain up to 30 shingles. The point is that, with such a high number of shingles, you are likely to find that one or more are defective and will curl in the Florida climate.

An Old or Damaged Roof

Putting shingles on an outdated or damaged roofing system does not improve the roof. Instead, it causes the shingles to wear out faster, leading to the need for premature professional roof replacement. Before paying for a new roof, make sure your current roof is in good condition. Address any issues with the roof that may affect the condition of the shingles.

Schedule a Roof Repair with Quality Roofing Solutions Today

If your shingles are curling, you may have severe roof damage. Quality Roofing Solutions can inspect your roof and repair or replace the damaged shingles. Contact us at 850-777-0961 to schedule a roof inspection in Florida.