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What Causes a Wavy or Rippled Shingle Roof?

Damaged shingle roof

When you have a new roof installed, you might notice that your shingles look wavy, but this should only last a few days. But if the appearance is still the same after a few weeks or months, you probably need to get in touch with your local roofer. In addition to lowering the curb appeal of your home, a wavy or rippled asphalt shingle roof could mean one of a few things.

VillWell Builders, LLC, one of the top emergency roof repair companies in the region, shares what may be causing a wavy and rippled shingle roof:

  • Compromised Felt Underlayment

Whether roofing work involves replacing old shingles or repairing damage, roofers shouldn’t remove more shingles than they can replace in a single day. That’s because the felt underlayment may wrinkle when exposed to moisture from rainfall or morning dew. During roof repair or replacement, the underlayment material should be completely dry before stapling the new shingles to the decking. Otherwise, the shingles will eventually look wavy or rippled.

  • Poor Workmanship

A wavy or rippled asphalt shingle roof may also be a result of poor workmanship on the part of the installers. To avoid this from happening, you must work with a trustworthy roofing contractor who follows industry standards. These include the appropriate number and placement of shingle nails to ensure that the roof won’t be damaged by strong winds.

  • Improper Framing or Sheathing

Asphalt shingles roofs may look wavy or rippled when the sheathing or decking is installed without any gaps between the boards to accommodate thermal expansion and contraction. It’s also possible that the installers may have forgotten to cover the sheathing from the elements. The dampness of the plywood or oriented strand board (OSB) may contribute to this shingle issue.

  • Inadequate Attic Ventilation

A well-ventilated attic has a complete set of intake and exhaust vents to allow heat and moisture to escape and allow fresh air to come in. Otherwise, condensation may occur under the wooden deck boards. The resulting moisture may then seep through the material and start to warp, causing the shingles to look wavy or rippled.

Wavy or rippled asphalt shingles compromise your whole roofing system’s longevity and performance. Get in touch with your local roofing company as soon as possible to get to the bottom of the issue and determine the necessary fixes.

For your roof repair and installation needs, look no further than VillWell Builders, LLC. We are a home improvement contractor that offers high-quality services for Connecticut homeowners. Apart from residential roofing, we also handle siding installations, deck construction, home additions, and kitchen and bathroom remodeling. Call us at (475) 271-1242 or fill out our contact form for a free estimate.

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