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Passive Protection5 min

Fire Door Don'ts — The 7 Instant Failures

Reference: NFPA 80 — Fire Doors and Other Opening Protectives

Key Talking Points

  • Fire doors are rated assemblies (20 min to 3 hours) designed to contain fire and smoke within a compartment. Every component matters — door, frame, hardware, and gaps.
  • NFPA 80 requires annual inspections of all fire door assemblies. The following 7 conditions are automatic failures:
  • 1) Propping open — wedges, door stops, or cords holding fire doors open defeat their purpose entirely. Only magnetic hold-open devices connected to the fire alarm are acceptable.
  • 2) Missing or disabled self-closing devices — if the closer is removed, broken, or adjusted so loosely the door won't latch, the assembly fails.
  • 3) Excessive gaps — clearance under the door must not exceed 3/4 inch. Side and top gaps must not exceed 1/8 inch (steel frames) or 1/4 inch per leaf.
  • 4) Painted-over or missing labels — the fire rating label on the door and frame must be legible. Painting over it or removing it voids the listing.
  • 5) Broken or missing glazing — fire-rated glass must be intact and properly labeled. Broken glass must be replaced with rated glass, not standard.

DO

  • Report any fire door that does not close and latch on its own
  • Check that the rating label on the door edge is visible and legible
  • Verify clearances look normal — no light visible through large gaps
  • Use only fire-alarm-connected magnetic hold-open devices if doors must stay open
  • Report missing screws, damaged hinges, or bent frames immediately

DON'T

  • Prop fire doors open with wedges, cans, chairs, or tape
  • Tape over or disable latching hardware
  • Paint over the fire-rating label on the door or frame
  • Remove self-closing hardware for convenience
  • Install unapproved hardware, kick-plates, or decorations on fire doors
  • Ignore a fire door that does not fully close and latch

Discussion Questions

  1. Walk the corridor — are any fire doors propped open right now? What should we do about it?
  2. Why is it dangerous if a fire door does not fully latch, even if it closes most of the way?
  3. Who should you notify if you find a fire door with a missing label or broken closer?