Asphalt shingles can last for several years and withstand extreme weather conditions if properly installed. They sometimes develop a wavy appearance after installation, but this should disappear after a few days. If your shingles still look uneven after several weeks or rippling starts after some years, it could be due to the following reasons.
Improper Roofing Techniques
Some roofers perform re-roofing, which involves installing new shingles over old roofing material. Unfortunately, this method causes the moisture trapped within the old shingles to seep into the underside of your new shingles. Over time, the new shingles will absorb the moisture, causing a rippled appearance.
Poor Roof Ventilation
Good attic ventilation ensures moisture can escape through the vents, preventing condensation from building up underneath the roof decking. Inadequate ventilation will cause moisture to accumulate inside the attic, which then leads to the warping of the decking material and the rippling of asphalt shingles.
High winds can cause asphalt shingles to have a rippled or warped appearance. If the damage is moderate, rippled shingles can still be smoothed and repaired. However, if the shingles developed creases or cracks, it’s best to replace them instead.
Leaks can pool on the underlayment after a heavy rain. As a result, the shingles also get soaked in moisture, causing them to develop a rippled appearance.
Sometimes, shingle rippling is caused by bad roofing products. If your roof is still under warranty, contact your contractors immediately so that they can address the problem. Make sure to review your roofing warranty so you know what is covered.
If you need reliable roofers for your project, you can’t go wrong with Pressure Point Roofing, Inc. With many years of experience, we can ensure quality workmanship and top-notch customer service. Call us at (541) 772-1945, or fill out this contact form to request a quote.