The Research On The Restoration And Maintenance Of "Historical Expression" In Old Buildings' Facade Renovation

With the old building renovation being placed more and more importance, great concern has been draw upon the facade renovation, yet different from the consensus reached on historical buildings, contemporary architectural practice still lacks of reasonable judgment to define massive ordinary old buildings in the cities. Under such circumstance, the majority of facade renovation projects nowadays have become standard projects or the testing field for architects, who don't have the awareness that there are historical information hidden on the facades waiting to be explored, much less the consensus of protecting and exhibiting these information. In the process of renovation, large amount of valuable and representative historical information were ruthlessly eliminated, resulting in the gap of buildings'history.For the whole process of the urban development, the architecture in every historical section is an important constituent and has its irreplaceable historic value. The term "Historical Expression" has been suggested here intending to draw architects'concern onto the maintenance of historical information in ordinary old buildings' facade renovation. Some successful projects are also illustrated to analyze and sum up the specific methods, so as to provide relevant guidance for the renovation practice.