To establish of estimation for snow cornice on flat roofs, the authors conducted wind tunnel test using natural snow and field observation subjected to the two buildings, and then examined the methods to estimate the snow cornice using roof shape coefficient based on the wind speed.
As the results, the tendency that the snow cornice grows as the wind speed decreases in the wind tunnel test was similar to the field observation. It was clarified that the location of the snow cornice could be predicted using the snow depth estimated based on roof shape coefficient calculated on the wind speed.