Fire doors are an integral part of a building’s passive fireproofing plan. They’re used for fire compartmentation –  a process that places physical barriers in strategic areas around a building, in order to slow the spread of flames and smoke in the event of a fire.

Fire doors are commonly designed to include a closing mechanism. Usually fitted at the top of a door, these spring-loaded or hydraulic mechanisms force the door closed, preventing fire and smoke from passing from one area to another.