Have you checked your asphalt shingle roof lately? You might want to have it checked by a roofing professional if its surface appears wavy or rippled. There are a couple of reasons why rippling in asphalt shingle roofs occur, and we’ll discuss some of them here.
Incorrect Deck Installation
The deck is an important part of roof design. It refers to the material used to cover the joists and trusses – components that make up the structure of the roof system. Commonly made of wood or oriented strand board (OSB), the deck serves as the foundation of the asphalt shingles. It has to be installed the right way to ensure the roof system can handle thermal expansion and contraction. If not, any extreme changes in temperature can cause the shingle roof to become rippled.
Unlike other roofing components, the underlayment isn’t visible from the ground. That’s because this thin, waterproof material is installed between the roof deck and asphalt shingles. The underlayment has to be completely dry before the asphalt roof installation can be performed. Otherwise, the material will wrinkle, making the newly layered shingles appear wavy. This can become a huge issue because rippling in asphalt shingles make them susceptible to water intrusion.
A roof layover pertains to the roof installation method that involves layering new shingles over the old ones. While more cost-effective than a roof tear-off (where the old roof is completely removed before a new one is installed), a layover job can leave your roof bumpy and rippled.
Dealing With Rippling in Asphalt Shingles
Most of the reasons for rippling in asphalt shingles are caused by poor workmanship. You can prevent this by making sure your choice of roof installer is qualified, experienced and manufacturer-certified. For many homeowners in the New Westminster area, the only name to call is Crown Roofing LTD. Make us your top choice for your roof installation, and we’ll make sure the project is done perfectly right the first time.
The Leading Roof Replacement Company in Vancouver
Crown Roofing LTD can effectively deal with any roofing problems you may have. We proudly serve homeowners in and around Vancouver and Surrey, BC. Call us today at (604) 370-6288, or fill out this contact form to schedule a roof evaluation.