Structural reinforcement with FRP sheets is increasingly being used for strengthening reinforced concrete structures, such as beams, slabs, columns, and piers. However, there are few data about the long-term durability of structural elements exposed to real climatic and environmental conditions. The authors carried out 10–15 year exposure tests on a variety of specimens that included concrete blocks with FRP plates bonded on one side. The specimens were located outside and submitted to the conditions of the Université de Sherbrooke campus. The paper presents an overview of these tests.