What Causes Shingles to Warp and Curl Over Time?

If you're a homeowner in Savannah, Georgia, you've probably noticed some roofs in your neighborhood with shingles that look bent, lifted, or curled. These are signs of warping or curling shingles, and they’re more than just an eyesore — they could signal deeper roofing problems that need to be addressed.

As a Savannah roofing contractor with over 20 years of experience, I’ve helped countless homeowners understand why their shingles fail and what steps to take to protect their roofs. Here's a closer look at the most common causes of shingle curling and warping — and what you can do to prevent it.

1. Age of the Roof

The most common reason asphalt shingles curl or warp is simply old age. Over time, exposure to heat, rain, and UV rays causes shingles to dry out and lose their protective oils. In humid climates like Savannah, roofing materials can deteriorate faster due to constant moisture and heat, especially in roofs over 15–20 years old.

2. Poor Ventilation

Your attic plays a huge role in the longevity of your roof. Without proper airflow, heat and moisture can build up, baking the underside of your shingles and causing them to warp. Many homeowners are unaware that poor roof ventilation in Savannah homes is a major cause of premature roof failure. Proper ventilation is a must for keeping your roof cool and extending the life of your shingles.

3. Improper Installation

Shingles that are not installed correctly — whether nailed too high, too low, or not sealed properly — are more likely to lift, curl, or warp. Hiring a qualified professional is essential. If you’ve ever dealt with a fly-by-night roofer or a rushed job, those installation errors could be the root cause of your current shingle issues. Always choose a licensed and experienced roofer in Savannah who knows the right techniques for our local conditions.

4. Moisture Damage

Moisture is one of the biggest threats to a roof. Water can seep beneath shingles due to clogged gutters, damaged flashing, or a leaking roof deck. In our coastal region, moisture under shingles in Savannah roofs is a common problem — especially after heavy rains or tropical storms. When moisture gets trapped, it can cause shingles to swell, warp, or rot from underneath.

5. Low-Quality Roofing Materials

Not all shingles are created equal. Low-cost or off-brand materials may seem like a bargain up front but can warp quickly under the intense Georgia sun. Investing in high-quality shingles for Savannah roofs can save you thousands in the long run by avoiding early replacements and repairs.

Call an Experienced Local Roofer in Savannah, GA

If you notice curling, warped, or buckling shingles on your roof, don’t wait for the problem to get worse. These are early warning signs that your roof could be vulnerable to leaks and further damage — especially during storm season.

Choosing a local roofer in Savannah with a 5-star rating and more than 20 years of experience means peace of mind. I understand the local climate, use the best materials, and always stand behind my work. Whether you need a shingle repair, full roof replacement, or just a professional inspection, I’m here to help.

Let’s protect your home — one shingle at a time. Call Beau Dossey Roofing at 912-272-7973 for a free estimate.