Fire-rated ductworks are needed to conduct the smoke exterior the developing, even using fan assisted techniques. If a smoke extraction ductwork is wholly contained in just a fire compartment, it must be capable of at the very least resisting the predicted smoke temperatures produced for the duration of the event https://fire-resisting-ductwork-i14556.daneblogger.com/35749059/what-does-fire-resisting-ductwork-insulation-mean