If the gaps around a fire door are too large, it will not prevent cold smoke from passing through which is toxic on inhalation and is a major contributor to fatalities in fires. It would also mean that air can flow into the room, adding fuel to the fire.
There are limits in place in order to protect people who live or work within a building, giving them more time to safely evacuate the building.
Learn the maximum gaps you can have underneath and around the sides of a fire door to ensure it is still efficient and compliant with fire door regulations.
Find out more by watching this helpful video, and remember to check your door core manufacturers technical manual for more detailed information on your fire door.
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