Fire Door Inspections & Drop Tests - Why Are They Important?

By Blog Master on 02 Aug 2018 In Fire-rated doors, Fire Door Inspections & Drop Tests

Fire Door Inspections & Drop Tests; Overhead Door Co. of Central Jersey

Annual fire door inspections and testing is a must, if your facility requires fire rated door systems. Fire rated doors can be rolling or sliding type doors and may include smoke detection/protection as well as fire protection. We are focusing on doors for larger openings here, not personnel doors. Why is an inspection and drop test important? The first and most obvious reason is personal safety. Other reasons include protection and preservation of property, insurance requirements and reducing liability should there be a fire event.

 An inspection/drop test will help to ensure that your fire rated door systems are functioning properly. A properly trained technician will carefully check the entire system. Some of the included items are:

Commercial fire-rated door by the Overhead Door Co. of Central Jersey

VISUAL INSPECTION:  Conduct a visual inspection for anything that may cause a hazard during testing or affect proper operation or resetting.

 Verify:

  1. Mounting and assembly bolts are not missing or loose.
  2. Welds and weld locations comply with installation method for fire door assemblies welded to steel jambs per manufacturer’s installation instructions.
  3. Fusible links are located per manufacturer's instructions.
  4. Guide assemblies have the required fire expansion clearance per manufacturer's instructions.
  5. Fusible links and sash chain/cable links are not painted or coated with dust or grease, cable is not kinked or pinched, chain is flexible and not twisted, and raceways are not obstructed.
  6. Smoke detectors/release devices function properly.
  7. Nothing that is not a part of the fire door assembly is attached to any part of the fire door assembly (suspended ceiling, light fixtures, ducting, conduits, framing and any other building materials).

Check for damaged or missing components:

Fire Door Inspections & Drop Tests; Slats

  1. Slats – check for anything bent; tears or holes; metal fatigue.
  2. End locks – check to verify none are missing; broken; bent; loose.
  3. Bottom Bar – check for bent or damaged angles; loose bolts.
  4. Guide Assembly – bent angles or channels; loose bolts; curtain entry misalignment.Fire Door Inspections & Drop Test; Hood
  5. Hood (and Flame Baffle when required) or Fascia – bent; rubbing curtain; holes; loose fasteners; metal fatigue; missing intermediate supports (when required).
  6. Automatic Closing Mechanism – missing, broken parts; drop or release arms tied, blocked or wedged. 7. Operating Mechanism – worn, misaligned or poorly meshed gears; worn roller chains; misaligned or loose sprockets; loose bearings; broken parts; bent shafts

OPERATIONAL CHECK: Open and close the door using normal operation.  If we find the door is not properly balanced, or there is damage or missing parts that may create a hazard or prevent proper operation, these conditions must be corrected before conducting a drop test.

 DROP TEST: A drop test is required to confirm that the fire door will close automatically during a fire emergency.  Use manufacturer's drop test instructions.  Door must be fully open before drop test.  The door must close fully so the bottom bar rests on the sill.  The average closing speed must be between 6" and 24" per second.  Test each automatic closing option for the fire door.

Fire Door Inspections & Drop Test;  fire door will close automatically during a fire emergency

Fire Door Inspections & Drop Tests; Commercial fire-rated door drop test

 RESET THE DOOR: Reset the door per manufacturer's instructions.  Open and close the door by normal operation. Drop test the door a second time, and reset again. Of course, ultimate acceptance of a fire door is the decision of the authority having jurisdiction, as defined in NFPA 80.

Fire Door Inspections & Drop Tests; Overhead Door Co. of Central Jersey fire rated doors

At Overhead Door Co. of Central Jersey, our commercial technicians have attended rigorous training prior to being authorized to inspect and drop test. We’ve been providing quality service to the central Jersey market over 45 years. Visit us on Route 202 South in Branchburg, NJ, between River Road and Readington Road, phone us at 908-722-5785 or find us on the web at www.OverheadDoorCo.com.

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