Study on water vapor adsorption and desorption properties of Oya stone as building interior materials

Abstract

The Oya stone to produce in Utsunomiya city, Tochigi is the stone which is famous for what was used for old Imperial Hotel of Frank Lloyd Wright design. About the physicaliy properties of the Oya stone which is many pores an experieced person tell, that I adsorb moisture and a smell, but there are many points that we do not know still more. In late years I test it for water vapor adsorption and desorption properties which has been paid its attention to as properties of building interior materials and, in this study, compare an Oya stone and the other materials and perform evaluation as humidity control building materials of the Oya stone. In addition, humidity control building materials authorization is performed flourishingly recently and performs the comparison with judgment standard of humidity control building materials at the same time.