42015-03-31 , 法政大学大学院デザイン工学研究科
With the post-war spectacular economic growth, various public buildings have been built in Japan. These buildings do not have a structural problem. But it is necessary to rebuild or update because they have problems on equipment and use. Generally low utility value building has been rebuilt, but that to constructing new facilities with discard the existing building must be reviewed from the point of view of environmental protection. This paper proposes the rooftop extension by timber structure as conversion of low utility value buildings.