What is one method to block open a fire door?

Disabling the locking mechanisms of a fire door using a key or latch device allows the door to remain in an open position while ensuring that it can be easily closed in case of a fire emergency. This method is often utilized in controlled environments where temporary access is required without the risk of the door becoming stuck closed or inadvertently locking during a critical moment.

Fire doors are designed to contain smoke and flames, so keeping them open is generally discouraged unless there is a plan in place to ensure that they can be closed quickly and efficiently. It’s important to note that this method is typically used by trained personnel who understand the risks and have a plan to secure the door properly.

Other methods, such as using a heavy object, maintain the door in an open position but could introduce significant safety hazards by preventing the door from fulfilling its primary function during a fire incident. Maintaining a door with a chain may not always be practical or effective, as it could break or fail to hold. Likewise, raising a door with hydraulic tools is entirely inappropriate and would cause severe damage to the door and its frame, negating its protective capabilities. Thus, the best method in this case is thoughtfully disabling the lock, understanding the guidelines around fire door safety and usage.