鉄筋コンクリート造の歴史的建築物における外装材に関する保存手法

－横浜税関本関を通して－

抄録

In conservation and renovation of historical buildings, it is hoped that exterior is conserved by original materials, not be easy restored by new materials, because exterior materials are important factors for historicality, landscape and authenticity.
This report presents conservation methods through the case of main building of Yokohama Customhouse in order to support conservation and renovation of exterior materials in historical RC buildings in the early Showa period.