The answer to 'my roof repair is failing' is that there are several common causes, including poor installation, weather damage, age, and lack of maintenance. Symptoms can include leaks, missing or damaged shingles, and sagging or blistering of the roof. The best solution depends on the specific issue, but may involve re-sealing, replacing damaged areas, or a full roof replacement.
If the roof repair is minor, such as sealing a small leak or replacing a few shingles, a homeowner may be able to handle it as a DIY project. However, for more extensive damage or complex issues, it's generally best to hire a professional roofing contractor. They have the expertise and equipment to properly diagnose and fix the problem, ensuring the repair lasts.