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Facility Teams

Why Closing Doors During a Fire Matters in NYC Buildings

Closed doors can help limit the spread of smoke, heat and toxic gases during a fire. Learn practical steps NYC property and facility teams can reinforce before an emergency.

View the FDNY Demonstration

In a building fire, a closed door can make a meaningful difference. FDNY and FDNYSmart public education materials continue to emphasize that closing doors during a fire can help isolate fire conditions and reduce the spread of smoke, heat, and toxic gases into public hallways, stairwells, and other shared areas.

For property managers, owners, and facility teams, this is not only a resident safety message. It is also an operational life-safety issue. Smoke movement through corridors and stairs can affect evacuation conditions, responding firefighters, and the overall emergency response environment.

Why FDNY Continues to Emphasize Closed Doors

FDNY officials demonstrated the importance of closing doors during fires in May 2026, noting that closed doors can limit the spread of fire, toxic gases, and smoke. The FDNYSmart program reinforces the same core message: when escaping a fire, close the door as you exit.

This is especially important in multi-family and mixed-use buildings where smoke spread can quickly affect residents outside the original fire area. A single open apartment, corridor, or stairwell door can change conditions for people elsewhere in the building.

What This Means for Property Managers

Building teams should treat door-closing reminders as part of routine fire and life-safety communication. The message is simple, but it should be repeated before an emergency occurs.

Practical communication channels include resident newsletters, lobby notices, move-in packets, annual fire-safety reminders, staff toolbox talks, and superintendent or concierge training.

Practical Building Communication Steps

  • Remind residents to close the door behind them when escaping a fire.
  • Reinforce that stairwell doors and corridor doors should remain closed.
  • Train building staff not to prop open fire-rated doors.
  • Include door-closing reminders in resident fire-safety communications.
  • Review whether signage, staff practices, and resident messaging are consistent.

How This Supports Fire and Life-Safety Readiness

Fire alarm systems, emergency communications, detection, central station monitoring, and resident behavior all contribute to a building’s life-safety posture. A clear door-closing message does not replace code-required systems or inspections, but it helps support safer conditions when an alarm or emergency occurs.

For building teams, the goal is simple: make the safest behavior obvious before people are under pressure.

Review Your Building’s Life-Safety Readiness

Need help reviewing your building’s fire alarm, inspection, maintenance, or emergency communication readiness? Contact NY Fire.

Official Resource

FDNY officials demonstrate how closed doors can limit the spread of fire, smoke and toxic gases during a building fire.

View the FDNY Demonstration