Fire Doors, Dampers & Structural Fire Protection in South Africa.

Fire doors, dampers and structural fire protection

Fire doors, dampers and structural fire protection make up the passive fire boundaries that hold a fire and its smoke inside one space long enough for crew to fight it and for others to escape. A wedged-open door, seized damper or unapproved penetration can defeat the whole boundary.

Fire doors are one of the most common fire safety findings in port State control,. vslSafety coordinates specialists to inspect, test, repair and document fire boundaries during the port call, for routine assurance, survey preparation or closing a deficiency.

Regulatory requirements and standards

The framework is SOLAS chapter II-2 and the codes it makes mandatory:

• SOLAS II-2/3 defines "A", "B" and "C" class divisions. "A" class divisions are steel or equivalent, prevent smoke and flame passing for a one-hour standard fire test, and are insulated to ratings such as A-60, A-30, A-15 and A-0 by the time in minutes they limit temperature rise on the unexposed side.
• SOLAS II-2/9 sets fire integrity of bulkheads and decks, the rules for openings and fire doors (9.4) and ventilation systems and fire dampers (9.7). For ships built on or after 1 January 2016 (resolution MSC.365(93)), fire dampers must be easily accessible, with an inspection hatch marked with the damper’s identification number where it is behind a ceiling or lining, and the number also marked on any remote control.
• The 2010 FTP Code (resolution MSC.307(88)) sets fire test procedures for divisions, doors and penetrations, and Part 4 covers fire door control systems. Doors, insulation and penetration systems must be type approved and installed exactly as approved.
• SOLAS II-2/14 requires an onboard maintenance plan, and MSC.1/Circ.1432 sets the recommended inspection and test intervals for fire doors and dampers.

New materials must not contain asbestos under SOLAS II-1/3-5, which matters when old insulation or door seals are removed.

Inspection and testing intervals

What the service includes

• Inventory of fire doors and dampers against the fire control plan and insulation plans
• Function test of each fire door: self-closing, latching, closing speed, hinges, seals, door closers and hold-back or magnetic release
• Test of central release from the bridge or fire control station, and of indicator panels
• Local and remote operation of dampers, position indication, fusible links, actuators and marking
• Inspection of A- and B-class bulkheads, decks, ceilings and linings for damage, missing insulation and unsealed openings
• Survey of cable, pipe and duct penetrations for unapproved or incomplete sealing
• Repair or replacement of door closers, seals, damper actuators, insulation and penetration seals with approved products
• Photographic defect register, repair evidence and retest record

Fire door release and damper interlocks are often wired into the fire detection panel, so the work can be combined with fire detection and alarm system servicing. Steel repairs to boundaries fall under welding and steel work.

Equipment and construction types covered

Typical items are hinged A-60 and A-0 steel fire doors, sliding fire doors with electric, pneumatic or hydraulic drives on passenger ships, B-class cabin and corridor doors, magnetic hold-back devices, and self-closing watertight-and-fire doors. Dampers range from manual lever and fusible-link types to pneumatic and electric actuators, with or without remote release. Insulation includes mineral wool on steel, B-class panels and ceilings, and approved cable transits and pipe collars.

Common defects and PSC deficiencies

In the 2023 Paris and Tokyo MoU concentrated inspection campaign on fire safety, the question on fire doors being in good working condition had the lowest compliance, at 9.3% non-compliance. In the Paris MoU focused inspection campaign on fire doors in July 2024, 13.9% of inspections found non-compliance, and about 30% of these were linked to weak ISM implementation. Typical findings include:

• Fire doors held open with wedges, ropes or hooks, or doors that do not close and latch
• Broken door closers, damaged seals, bent frames and missing latch parts
• Dampers seized by corrosion or grease, with no position indicator or identification mark
• Damaged or missing insulation after repairs, and holes left in divisions after cable work
• Penetrations sealed with foam or other unapproved material
• Crew unable to show how to release doors or close dampers remotely

Certificates and documents you receive

You receive an inspection and test report listing each door and damper, its location and number, the result and the defects, with before and after photographs of repairs. Where materials are replaced, keep the type approval and product certificates for doors, closers, seals, insulation and penetration systems. These support the fire protection maintenance records and help the surveyor or PSC officer close a deficiency, though acceptance rests with them.

How to prepare the vessel

Send the fire control plan, insulation plan and any deficiency report ahead so the provider brings the right parts. Plan cabin and corridor access with the hotel or accommodation team on passenger ships. Hot work on boundaries needs a permit and checks for hidden cables and insulation on the other side. Before disturbing old insulation or seals, check the Inventory of Hazardous Materials for asbestos; see our IHM maintenance page. Have spare closers, seals and actuators on board confirmed before the call.

Information needed for a quotation

• Vessel name, IMO number, type, flag and class
• Port, ETA and ETD, and working hours allowed on board
• Number and type of fire doors and dampers, and their locations
• Fire control plan and insulation plan
• PSC, flag or class deficiency report and required closing date
• Photographs of defects, door and damper makers, and spares on board
• Whether hot work, class attendance or asbestos checks are needed

vslSafety coordinates a suitable fire protection contractor at the vessel’s port and aligns repair and retest with the survey or PSC follow-up.

Frequently asked questions

How often should fire dampers be tested?

MSC.1/Circ.1432 recommends testing all fire dampers for local operation quarterly and for remote operation annually, together with ventilation controls linked to the fire systems. Galley exhaust ducts and filters should also be checked for grease every year. Your onboard maintenance plan under SOLAS II-2/14 may set tighter intervals, and each test should be recorded against the damper’s identification number.

Can fire doors be held open?

Only by a hold-back device that releases automatically, for example magnetic holders released from a continuously manned control station or by fire detection, where the approved arrangement allows it. Wedges, ropes and hooks that are not centrally released defeat the door and are a common PSC deficiency. If a door must stay open for operations, fit an approved release device rather than propping it.

What does A-60 mean?

An A-60 division is an "A" class steel bulkhead or deck, insulated so that the average temperature on the unexposed side rises no more than 140°C, and no single point more than 180°C, for 60 minutes in the standard fire test. Lower ratings such as A-30, A-15 and A-0 limit temperature rise for shorter times. Doors and penetrations in the division must have matching ratings.

Can we seal a cable penetration with fire-rated foam?

Only if that product is type approved for the division rating and installed exactly as the approval requires. Generic foam, putty or mastic is a common deficiency. Use the approved transit system already fitted, or an approved replacement, and keep its certificate on board with a record of where it was used.