If you have ever worked in a fast-food restaurant or at a convenience store, you have seen the bars on the doors in a secure area, often labeled "employees only," that can be opened only from one side. This bar is a panic device that ensures the building's security, one of four common types of devices whose efficiency is defined by the situations in which they are used.
Panic Latch
The panic latch is used when maximum security is not a top priority, but an emergency exit is required. A panic latch, which looks just like a bar across the door, can be combined with the outside latch to make the door available from both sides to be used as a regular access door. These devices often have a clutch mechanism on the inside for emergencies. They are most often used in fast-food restaurants and other buildings where people come and go all the time.
Panic Bolts
The panic bolt, which is a bolt on both the top and bottom of the door with a metal bar in between, can be used for doors that are only used in emergencies. These doors also can be combined with a latch on the outside to create an available passageway from both sides. Top and bottom bolts give these doors more solid security and rigidity. Two of these sets of bolts, called a combination unit, can be used for rebated double doors. If the doors are flush, try using two single bolts that attach to each door for increased efficiency. These doors are often used in schools or other buildings where a great number of people are inside.
Panic Push Pad
Push pads are metal tongue-like devices that can be pushed to give access to the outside of a building. These are used when space is limited but an exit is required. This type of device cannot legally be placed where people not familiar with emergency routes are allowed to roam. These devices are most-often combined with panic latches, but can also be combined with panic bolts to a lesser degree of efficiency. They are most often used in small office buildings and buildings in which the employees are familiar with the device
Break-Tube Exit Devices
Break-tube exit devices should be used on doors that will be opened only in an emergency. If this device is used, update any personnel who may need to use the doors, as it involves more than one step to open the door. These devices cannot be used if it is possible for outsiders not familiar with emergency exits to come into contact with them.
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