Co-operators General Insurance Company
                                            Loss Prevention Bulletins

                ROLLER TYPE FIRE DOORS

LP032 (09/03)
                                           ROLLER FIRE DOORS


Roller type fire doors have similar Fire Resistance Characteristics to Vertical Personal doors and
Sliding Vertical fire doors, except that they operate in an up and down roller type motion rather
than a vertical motion.


Roll-down fire doors are most common in industrial facilities, where they remain open during
operations, but are equipped with fusible links to allow the door to shut if a fire occurs. Once the
fusible link is broken by heat, a release mechanism allows the roller door to close and seal off the
opening, Whether a single roller or a double roller door is installed on each side of the opening,
fusible links, which are integrated are required to be installed on each side of the wall.


Fusible links should never be painted, nor should dust or debris be allowed to accumulate on
them. A link should only be replaced with an identical fusible link. Any heat or smoke detectors
connected to the release mechanism should be maintained according to the manufacturer's


Roller type fire doors and all related equipment such as chains, rollers, tracks, gears and fusible
links should be inspected yearly by a qualified contractor. The doors should be tagged with the
date of service and a copy of the report should be forwarded to your insurance company.

Routine maintenance checks should be conducted by trained company personnel to ensure that
the door has not been damaged, obstructions have been removed, proper signage is in place and
legible, and the door is operating and will fully close when activated. Records of all inspections,
deficiencies, and corrective actions should be kept on file.

Reference: NFPA 80 - Standard For Fire Doors and Fire Windows - 1999 Ed.

  *In this bulletin the reader is provided with information about loss control issues. The bulletin is not a substitute
  for a thorough loss prevention assessment. In those situations where there is a concern about issues raised in
  this bulletin the reader should seek professional advice.
  The Co-operators Group of Companies will not be responsible to the reader for any loss or damage which the
  reader may suffer as a consequence of having relied on this publication.

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