Abstract
The aged deterioration occurs in the case of exterior tiles such as tile floating and cracking, because it uses a wet method. In consideration of the service period of the building, technique that can be appropriately set the period and the number of times of the renovation is required. Therefore, this report, two or three times in the past, as the target of the two buildings that were hammering test analyzed the occurrence tendency of the floating, and the like. The building is one of improvement compression bonding method, the other was using a mask method. The analyzed result, the aged deterioration phenomenon, there is a case that can be progress forecast, such as the underlying mortar floating. This was found to adapt the concept of preventive maintenance. Moreover, the difference of the tile bonding method, there were differences in the tiles floating pattern.
