There is a certain raw excitement to watching a building be demolished. It’s watching the colossal amount of force and explosives typically reserved for action movies being used in real life to unmake something right in front of us, but with that excitement comes a certain level of danger.
Demolitions go wrong more frequently than most people would like, with newsworthy tragedies as recent as August. Japan seems to have found a way to dismantle buildings that minimizes damage and maximizes safety.
Japanese architects have developed a technique to dismantle buildings floor by floor as the structure is slowly scrapped. The effect is subtle, and it appears that the structure is shrinking on its own as time passes.
A spokesman for the technique’s inventor, Taisei Corporation, said the technique resulted in much more reusable material from the old building and was a much greener practice than traditional demolition. The practice is also much less disruptive to the area around the structure, as the building looks intact (but smaller) over an extended period and work being done from the top down is typically covered so as not to be visible from the street.
Japan is a somewhat unique case in that they suffer from both a glut of office buildings and a lack of space, but the “stealth demolition” technique is an alternative for dense metropolises where loud demolition is impossible to do safely.