Energy-saving Renovation of Kyo-machiya Considering the Moisture Buffering Effect of Soil Walls

Kyo-machiya, a type of traditional townhouse in Kyoto, is considered as cultural heritage that needs to be preserved. However, the high air leakage due its unique structure and poor thermal insulation because appearance may lead heating energy consumption. Therefore, an appropriate energy-saving renovation technique proposed. lack quantitative analysis hinders establishment effective guidelines focused on healthy indoor environments Kyo-machiya. Previously proposed retrofits were conducted using conventional methods with limited effectiveness. The soil wall Kyo-machiya has impact significant feature, crucial for residents. Also, moisture-buffering effect. adoption interior should caution. In addition, not fully resolved via methods. this study, we used numerical model typical evaluate different designs, including exterior insulation, vapour/moisture proof solutions, effectiveness enhancing tightness. Finally, plan based methods, considering balance between hygrothermal risk.