The magazine (Bulletin) of “Seikou” was made by conservation engineers to exchange information about the survey and repair work of historic buildings in Japan before World War II. This magazine has 26 volumes in total, and was published periodically four times a year from April 1937 to December 1943. Publisher is Nindokai that is supposed to the forerunner of Bunkenkyo (the Japanese Association for Conservation of Architectural Monuments). Only 3 or 4 organizations except personal possession have it now. And it has a limit to use the contents of the article as a general historical material. So, it was rare that experts and researcher used to the “Seikou”. However, this study focuses on the articles of the Korean historic building, which is sometimes appeared in it, although there are few. The purpose of this paper is to clarify the fact-finding of the conservation for the Korean historic building in Japanese colonial period by analyzing the articles in historical records of “Seikou”.

This study is conservation works trend since 1900. Objects for study are National Treasures and Treasures in Buddhism, in wooden architecture. And researched about the factor of conservation works, roof and tile, painting and dissolution conservation works cycle by dissolution, timber change ratio. The factor of conservation works is the most, roof and tile. Conservation works cycle by dissolution is 12.8 years. Painting cycle is 16.3 years. There are two concepts of conservation works, that is restoration and preservation. There are many restoration before 1960's. To 1960's the preservation to be many to 1970's many Restoration. And since the end of 1970's is Preservation. These reasons are conservation works history of object, the rule for Heritage protection, people on works, and study of architecture. history.

Most of researches in Korea by far on Sekino Tadashi were mainly focused on his historical view only. The main observations of this study, instead, are that; (1) his methodology of studying architectural history was closely related to his previous experiences with the conservation of the architectural heritages in Japan, and (2) his earlier activities in Korea made a significant Influence on the conservation of the architectural heritages in Korea. Sekino started his carrier after the graduation from the university by participating in the restoration sites of the architectural heritages in Japan, and his experiences at that time had founded the basis of his methodology of studying architectural history. Later, his on-site experiences were also adapted into the conservation of the architectural heritages in Korea when Korea was about to be colonized by Japan. In other words, Sekino's study on the Korean traditional architectures started from 1902 had a meaning of not only the starting point of the study on the Korean architectural history but also the starting point of the conservation of the Korean architectural heritages. Especially, Sekino's study during 1909 1912 prioritized the conservation of the architectural heritages as the main purpose of the study, and the influences of the study spanned over the entire colonial period by Japan. The influences were that; (1) Sekino's studies in 1909 1912 had outlined the colonial government's policy of the conservation of the architectural heritages, and (2) many restorations were made based on those studies.

How have they preserved the regional historic buildings in Korea? Do they preserve the original value as a historic building. Are there any artificial deformations deteriorating the quality of the buildings? Is the regional system for preservation effective agalnst the artificial deformations of the buildings? These questions are involved in the purposes of this paper. I investigated the historic buildings designated by Kyong-Nam provincial government. As the resuit, variouse patterns of artificial deformation were found. I found that the deformations may deteriorate the original quality of historic building, and it is related somehow to the limitations of regional system for preservation. So I suggest some alternative ideas for preserving the quality of historic buildings against artificial deformation : a. Present system for preservation is not effective for preserving various architectural value such as urban context and landscape, site planning techniques, function of a space, etc. Regional system should be revised for preserving their architectural value or meaning. b. Historic buildings should be classified and should have proper protecting area according to each architectural values or meanings, respectibly: Historic buildings with Urban context and landscape Historic buildings as a part of a complex Historic buildings as a behavorial setting. c. Historic buildings should be graded based on their quality. And standard and criteria for acceptable deformations should be established. d. Periodical inspections by experts should be carried out to check out the deformation.