If you notice your asphalt roof looks wavy or rippled, it could be due to an aging roof, poor ventilation, faulty roof installation or others. Learn more about the five most common causes of rippling in asphalt shingle roofs.
1. Insufficient Roof Ventilation
Poor ventilation causes heat to build under the shingles, causing them to expand and contract. This movement causes shingles to have ripples. The best way to deal with poor ventilation is to ensure there are enough roof vents and your attic is also properly ventilated and insulated.
2. Roof Leaks
When ignored, roof leaks can result in damage to the underlayment of the asphalt roof. The underlayment could wrinkle due to excessive moisture, leading to irregular formations on the shingles. Make sure that a professional inspects your roof regularly so that you can detect leaks early and prevent them from affecting other parts of your roof.
3. Old Roofing Material
An aging roof is more likely to suffer from rippling because shingles tend to become thin and brittle as they age. Asphalt shingle granules also break down over time, creating bald patches or deformities on your roof and exposing the inner layers of your roof to outdoor elements. In this case, you should schedule a roof replacement as soon as possible.
4. Blisters
Asphalt roofs develop blisters due to the presence of moisture inside the shingles. When exposed to extreme heat, the blisters rise and eventually pop. Blisters are more common in highly humid areas, such as beachside properties, but high humidity levels in the attic can also trigger asphalt shingle blisters.
5. Poor Installation
Ensure you’re hiring an experienced and reputable roofer to install your asphalt shingles. If your contractor cuts corners or fails to follow the manufacturer-approved installation method, your roof will likely suffer from various issues, including rippling.
To avoid issues with your asphalt shingles, trust only roofers with the right skills and knowledge, such as Twin Cities Siding and Roofing. Call us at 651-571-9557, or fill out our contact form to get started with your project!
