An enclosed demolition method of high-rise buildings is expected to reduce the dispersion amount of airborne particulate caused by demolition works. This paper describes ventilation performance and reduction effects of dust dispersion of this demolition method based on field measurements and numerical simulations. Our results showed that natural ventilation was promoted at openings that were designed in the border of the roof. Moreover, it was confirmed that 80 percent of the airborne particulate of the total dust produced by demolition works were deposited inside the enclosed space.
