After installation, it’s normal for asphalt shingle roofs to look a little uneven for a while. However, you need to call your contractor if your roof doesn’t lay flat after several days. A reliable roofing professional will address this issue promptly, making sure your new asphalt shingles look even and appealing.
Here’s why this problem happens.
Compromised Felt Underlay
An experienced roofer will not tear off shingles they can’t replace immediately. The felt underlay beneath them can get exposed to moisture, causing wrinkles. The same issue can occur when a roof is installed while it’s raining. If the felt does get wet, your roofer should allow it to dry completely before adhering to the shingles. Attaching shingles to wet felt will cause the shingles to appear wavy.
Improper Roof Installation
A roof that looks rippled is likely the result of poor workmanship. Whether you are getting new asphalt shingles, you must work with a reputable professional. This issue can be avoided with proper nailing direction or stapling. A skilled roofer knows that felt must be stapled and shingles nailed in the same direction the shingles are being installed. Poorly nailed shingles are more likely to break away from the roof during an extreme weather event.
Incorrect Framing or Sheathing
Asphalt shingles can ripple if the contractor installs the sheathing without a space between the boards for expansion and contraction. It can also happen if the installer leaves the sheathing exposed to outdoor elements without appropriate covering. Moreover, a sheathing material can also have imperfections if stored in a place with excessive moisture.
At Hershey Exteriors, Inc, we install roofing materials that can boost your home’s curb appeal and protection against the elements. Besides asphalt shingles, we also install metal and cedar roofs. Call us at (302) 569-9039, or fill out our contact form to request a free estimate.