What Causes a Roof to Leak Even After Recent Replacement?

Even a new roof has many potential failure points. A roofer might install flashing incorrectly around chimneys, vents, or walls. They could also nail shingles too high, damage them during installation, or forget to apply enough sealant in critical areas. These small errors often go unnoticed until water finds its way through.

Quality materials can fail if installed poorly. For example, valley flashing must be overlapped in the correct direction to shed water. If the underlayment has gaps or tears, water can bypass the shingles entirely. A climate with seasonal temperature swings and rain will test any weak spots thoroughly.

Your first step is to contain the water inside. Place buckets under drips and move furniture or valuables out of the way. If safe, you can check the attic with a flashlight during rain to trace the water's path. Look for stains on rafters or wet insulation leading back to the source.

Document everything with photos and notes for the roofing contractor and your insurance company. Contact the roofer who performed the work, as the leak may be related to their work. At the same time, you should contact local water damage pros to prevent mold and structural damage inside your home.

Communicate clearly with your roofing contractor. Provide the photos and a description of when the leak occurs. A roofer should inspect their work to identify and fix the issue. Be aware that typical agreements cover materials and labor for defects, but not damage from unrelated events or subsequent problems.

If the leak causes significant interior damage, you may need to file an insurance claim. Policies vary, and your insurer decides what is covered. Keep records of all communications and repairs. For major water intrusion, the drying work by water damage restoration pros is often a separate, necessary service.