Asphalt shingle roofs are one of the most reliable roofing types. They’re a standard choice among U.S. homeowners and contractors. However, there are times that these roofs suffer from physical issues that need to be addressed immediately — including wavy or rippled shingles.
Wavy or rippled shingles can occur in new and old roofs. It helps to be familiar with their causes and the best options to address them.
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Thermal Expansion
Your shingles can become rippled if the contractor installed them in freezing temperatures without leaving gaps to account for thermal expansion. Construction materials are subject to expansion and contraction under fluctuating temperatures. Cold weather makes your shingles contract, and hot weather makes them expand. The gaps between shingles are there to ensure even spacing and room to expand when the weather gets hotter. If your shingles were installed in cooler seasons and the necessary gaps weren’t created, then it’s best to replace all the shingles as this can further put your whole roofing system at risk.
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Improper Roof Replacement
Proper roof replacement involves tearing off all the old roofing materials before installing new ones. But some homeowners and contractors make the wrong choice of putting new shingles over old ones, either due to poor workmanship or the misconception that adding an extra layer of shingles provides more protection. This practice will cause moisture to get trapped in the old shingles to affect the newly installed shingles, causing them to curl up and ripple.
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Poor Roof Ventilation
Moisture has always been a primary enemy of roofing systems, and poor roof ventilation causes significant moisture buildup in the attic. When your attic can’t properly vent humid air, the heat and trapped moisture can cause condensation on the underside of your decking boards — eventually seeping through and reaching the new shingles. The moisture will then cause your new shingles to curl up.
Since 2002, Premier Systems Roofing has continuously provided high-quality residential and commercial roofing services. With our team, you can expect great value and professional workmanship that will last you through the years. Request a quote today by calling us at (605) 361-4955 or filling out our contact form.
