The basic safety requirements for a fire door include the need for self-closing to avert or minimize the spread of toxic gases or fire. The door should also feature an appropriate latching device to ease people’s mobility and speed up their exit from a fire zone. As proof of its efficacy, a fire door needs to undergo fire testing prior to installation.
Certification is also a safety requirement for fire doors. A fire door should have a certification label indicating it has undergone testing by a recognized laboratory. The latching device on a swinging fire door must be labeled, while the latch bolt length should correspond to the indications on the label.
A fire door’s supporting hinges should be made of steel to prevent discoloration of the door in the event of fire. Steel ensures the longevity of the safety door by preventing rust, keeping it from sagging, and ascertaining that it closes during a fire. The fire door needs to be in a closed position that ensures it serves its protective purpose when fire occurs.
Another requirement is a release mechanism on the fire door that works upon the activation of a fire alarm. Unless equipped with such a mechanism or device, the door should stay closed.