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Passive Fire Learning Centre

Understanding Fire Doors

Learn how fire doors protect escape routes, contain smoke and fire, and help maintain building fire compartmentation.

Fire Doors

One Of The Most Important Passive Fire Systems

Fire doors are designed to help contain fire and smoke within fire compartments and protect escape routes.

They are a critical part of a building’s passive fire protection system and must be properly maintained to function correctly during a fire.

Even small defects can affect the performance of a fire door and reduce its ability to contain smoke and fire.

Fire Door Components

Key Fire Door Features

Door leaf
Door frame
Smoke seals
Intumescent seals
Self-closing devices
Fire-rated hardware
Threshold seals
Door labels

Common Defects

Typical Fire Door Issues

Missing smoke seals
Excessive door gaps
Damaged door leaves
Doors wedged open
Missing self-closers
Damaged frames
Incorrect hardware
Damaged threshold seals

Door Gaps & Smoke Seals

Why Small Gaps Matter

Excessive gaps around fire doors can allow smoke and hot gases to spread rapidly through a building during a fire.

Smoke seals and threshold seals help limit smoke movement and maintain the effectiveness of the fire compartment.

Missing or damaged smoke seals are one of the most common defects identified during fire door inspections.

Inspection & Maintenance

Maintaining Fire Door Compliance

Fire doors should be regularly inspected and maintained to ensure they remain compliant and functional.

Inspections typically include: door gaps, smoke seals, self-closing devices, hardware, damage, labels and overall condition.

Proper documentation and maintenance records are important for ongoing compliance management.

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