Highlights of Exterior Wall
Tokyo Station has continued its evolution as a landmark of Tokyo and has served as a major hub of the nationwide railway network in Japan since it opened in 1914.
During its construction stage, the station was provisionally referred to as "the Central Station." It was then renamed "Tokyo Station" upon its inauguration. Since then, the station has contributed to the development of the surrounding business district, which functions as the center of Tokyo. It has borne witness to many defining historical moments that have shaped Tokyo and Japan over the course of a hundred years.
In 2012, Tokyo Station building, which is designated as an important cultural property of Japan, was successfully preserved and restored to its original state. Tokyo Station embodies harmony between the past and future, and it is creating a cultural bridge between Japan and the rest of the world as it develops into Tokyo Station City.
1Restoration of the exterior wall
The building frame was rebuilt with reinforced concrete, and the exterior face of the wall was restored using face bricks for the third floor. The existing brick building frames on the first and second floors were preserved, while their exterior wall claddings were rebuilt with face bricks that restored the original appearance.
- Reproduction of face bricks
The face bricks were made to more closely resemble the original bricks.
- Preservation and restoration of beaded joint
The mortar joint finishing process used in the original construction was time consuming.
2Natural Slate Roof
The pure-black natural slate roof in the original building was completely destroyed during the war. At one point, the building was roofed with iron plates as a stop-gap measure, as part of the postwar restoration work. In 1990, however, the building was reroofed with natural slate tiles. Robust natural slate has been re-used for this purpose. Japanese slate has been employed in the recent restoration works on the more visually-impressive areas like the North and South Domes, as well as the Central Portion. The thin slate tiles have been attached securely in a perfectly straight line (ichimonji buki-style shingle roofing), one tile at a time through a manual process.
- Restoration of the external walls on the third floor
The pillars and columns were restored to their original shape,togerther with the restoration of external walls on the third floor.