The answer to 'my roof repair is failing' is that there are several common causes, including improper installation, poor quality materials, or damage from weather and age. Symptoms may include leaks, sagging, or missing shingles. The solution often requires re-roofing or extensive repairs by a professional roofing contractor.
It's generally not recommended to attempt major roof repairs yourself, as working on a roof can be dangerous and requires specialized knowledge and tools. DIY repairs may end up causing more damage or safety issues in the long run. For the best results, it's best to hire an experienced, licensed roofing contractor to assess the problem and provide a comprehensive solution.