Abstract
In recent years, it is necessary to secure the non-structural material in the event of a disaster. Lathing plaster ceiling of the traditional building is no exception. It is necessary to a healthy degree to properly evaluate respect for the value of such as culture, history, design, technology and authenticity of the traditional building. In this study, we have developed the repair method of existing ceiling by the acrylic resin. This technique does not require traditional skills. Therefore, to improve the health of the building at a low cost, it is possible to protect the history, culture, technology and safety.