We believe in keeping homeowners informed about their roofs. One common concern we often come across is the issue of curled asphalt shingles. In this blog, we'll break down the reasons behind this common problem and what you can do to address it.

Aging and Wear:

Over time, the natural aging process takes a toll on asphalt shingles. Exposure to the elements, including sunlight and fluctuating temperatures, can cause the shingles to lose their flexibility and curl at the edges. This is a normal part of the life cycle of asphalt shingles.

Poor Installation:

Shoddy installation practices can contribute to shingle curling. If the shingles are not properly nailed down or if they are installed in conditions that don't adhere to industry standards, it can lead to premature curling. Quality installation is crucial for the longevity of your roofing materials.

Inadequate Ventilation:

Proper attic ventilation is essential for maintaining the health of your roof. Without adequate ventilation, heat can build up in the attic, causing the shingles to overheat and curl. Ensuring proper ventilation can help prevent this issue.

Moisture and Water Damage:

Exposure to moisture, whether from leaks or high humidity, can also contribute to asphalt shingle curling. Moisture weakens the shingle structure, making them more prone to curling. Regular roof inspections can help identify and address moisture-related issues.

Manufacturing Defects:

In some cases, manufacturing defects in the shingles themselves may lead to premature curling. While this is less common, it's essential to be aware that defects can occur, and choosing high-quality materials is key to avoiding such issues.


Understanding the factors that cause asphalt shingles to curl is the first step in addressing the issue. If you notice curled shingles on your roof, it's advisable to consult with roofing professionals like us at Park Heights Roofing. We can assess the situation, provide recommendations, and ensure your roof remains in top condition. Remember, a well-maintained roof not only protects your home but also enhances its overall longevity.