STUDY ON A NEW HUMIDITY CONTROLLING MATERIAL USING POROUS SOIL "ALLOPHANE" : Evaluation of humidity controlling performance in test houses

Abstract

We have developed a new humidity controlling material using porous soil "allophane". It was found that the rate of moisture adsorption of this material was about higher than that of wood and this material has good performance of humidity control in the small chamber experiment Effects of this material in the living space were examined by using two test houses for one year. One is putting this material on the wall. The other is putting popular vinyl wallcovering. It was cleared that this building material could decrease humicdity change and the amount of dew condensation in the living space.