Is the fire door of residential stairwell normally open or normally closed?

The fire door in the stairwell of the residence is normally closed.

Normally closed fire doors are generally installed in special equipment spaces such as safe passages and pipe wells, fire control rooms and fire pump rooms in buildings, which are mainly used to prevent and isolate smoke and fire from escaping into evacuation areas and key parts of fire prevention and extinguishing.

The normally closed fire door separating the floor from the closed stairwell is always open. In case of fire, smoke and flame will quickly pass through the open fire door because of "stack effect" and rush into the closed stairwell, making the stairwell as a life passage a life-threatening space.

Extended data

Fire safety tips for high-rise buildings

(1) It is forbidden to pile up sundries in the evacuation passages and stairwells of high-rise buildings, and the fire doors should be kept normally closed. If you find any fire hazards, please call 96 1 19.

(2) When you are in a high-rise building fire, evacuate from the safe passage as soon as possible. Don't be greedy for property, and you can't take it back.

(3) The fire control facilities of the building shall be in good condition and effective, and the fire control facilities such as automatic fire alarm and automatic sprinkler are in automatic start-up state.

(4) When the fireworks block the escape passage, you can go back indoors and close the doors and windows, block the gaps between the doors and windows with wet cloth, water the doors and windows of the fire to cool down, and send out distress signals by calling for help or shouting at the balcony or street window, flashing a flashlight, throwing clothes, etc.

(5) Never jump off a building blindly after a high-rise building catches fire. If you are trapped below the third floor, you can slide down the drain pipe or form a rope to let the sheets escape. You can also throw indoor mattresses, quilts and other soft things downstairs and jump from the window to escape.

China news network-fire exposure fire hazard: normally closed fire door "normally open"

China News Network-Home Reminder: Fire Safety Tips for High-rise Buildings