Analyses of indoor humidity environment in nationally residential houses of Japan

Abstract

Based on the energy consumption database of nationally residential houses in various districts of Japan, indoor humidity environment was analyzed. In winter and summer seasons, the statistical values of temperature, relative humidity, absolute humidity and the absolute humidity difference between indoor and outdoor were calculated for each house. In addition, the relations between these statistical values and the level of thermal insulation or airtightness, as well as the possibility of fungal damage were examined.