Fire doors play a vital role in blocks of flats with communal corridors, delaying the spread of fire and smoke, protecting lives and property.
What fire doors do
When a fire happens, it acts as part of the building's fire protection measures to prevent fire and smoke from travelling around the building, buying occupants time, creating a safe refuge, and providing a protected route for the emergency services to enter the building.
How fire doors work
There are key parts in a fire door, all working together to provide a fire barrier.
The door itself is constructed with a core that will resist the spread of fire for a set period of time.
Around the door and frame there are also seals, one seal is designed to limit the spread of smoke through the gap between the door and frame, whilst the other seal is designed to expand when exposed to heat, sealing the door in place and preventing the fire from spreading beyond the door.