The longevity of a roof repair depends on the type of material used, the quality of workmanship, and the environment in which it is located. Generally speaking, most repairs should last at least 10 years if done correctly. However, some materials may have shorter lifespans due to environmental factors such as extreme weather or poor maintenance. Additionally, if a repair job is not done properly or with high-quality materials then it could fail much sooner than expected. Ultimately, proper installation and regular maintenance are key to ensuring that your roof repair lasts for many years to come.