• It is under the SCDF Fire code that any exhaust ducting within 5m of resident window, on top of the common walkway will require the exhaust ducting to be Fire-rated with at least 1 Hours of fire-rating.

根据SCDF防火规范，任何位于常设窗口500米以内的排气管道，在普通走道顶部，都要求排气管道有至少1小时的防火等级。