The answer to 'my leak repair is failing' is that there could be several common causes, including improper installation, damage to the repair materials, or ongoing issues with the roof itself. Symptoms may include continued leaking, water stains, or mold growth around the repair area.
To fix a failing leak repair, you'll first want to inspect the area closely to identify the root cause. This may require removing the old repair to fully assess the condition of the underlying roof. Depending on the issue, solutions could involve re-sealing the repair, replacing damaged materials, or addressing larger structural problems with the roof. If the repair is complex or the root cause is unclear, it's best to call in a professional roofing contractor to properly diagnose and resolve the problem.