In this paper, we discussed the concept for appropriate repair period for finishing materials of reinforced concrete structures. We investigated the actual building repair cycle, the progress of carbonation of concrete, and the adhesion strength of various finishing coating. In addition, we carried out 10-years exposure test of concrete with various finishing to evaluate the progress of carbonation and the degree of deterioration of the finish coating material. From these results, we showed the possibility of extending beyond the current repair cycle.