Architectural shingles are a popular roofing choice due to their layered look and durability, but like any roof covering, they can experience seam failure. Seam failure happens when the overlapping edges of shingles start to lift, separate, or allow water to penetrate beneath the surface. This issue often arises because of improper installation or the use of lower-quality adhesives that don't hold up over time. Weather conditions such as strong winds, extreme heat, or freezing temperatures, along with natural aging, can exacerbate the problem. Another factor might be thermal expansion and contraction causing the shingles to warp and the seams to weaken. To check for seam failure safely yourself, look for shingles lifting or curling at the edges, especially after a storm or on windy days. Also, use binoculars from the ground to spot any gaps or visible damage in the shingle layers to avoid climbing on the roof without experience or proper safety gear.
If you notice signs of lifting seams or water stains inside your home, it's usually time to call a professional roofer to assess the problem. When you do, ask specifically whether the current adhesive used on the shingles is still under warranty and if it's compatible with your roofing material. You might also ask how they propose to fix the seam issues — whether it’s resealing individual shingles or recommending a partial or full roof replacement. Experienced contractors will inspect the fastening, recommend the correct adhesive or sealant, and ensure that repairs meet your roofing system’s warranty requirements. Early professional intervention can prevent leaks and damage that could turn costly, keeping your roof secure and preserving your home’s value.