A level 16 typhoon is capable of dumping up to 7” of rain per hour. Because of this, all skyscrapers on the Chinese coastline (e.g. Shanghai, China, Hong Kong, China, Macau, China etc.) must have specially trained workers dangle off of the side of the building from support lines, with high pressure water hoses. These workers spray random windows for 5 minutes as inspectors scrutinize the windows for leaks