Exit Devices

Definitions
Openings
Devices

Astragal:

A vertical strip of wood or metal fastened to one leaf of a pair of doors, overlapping the other door for security or weather/sound control.

Alarm:

Some exit devices can be equipped with local alarms which are activated by depressing touchbar for exit.

Coordinator:

A device with prevents the active door from latching until the inactive door closes completely.

Dogging:

Mechanism to depress the exit device touch bar and to retract the device latchbolt(s), converting the latched opening into a push/pull door. Operated by either a hex key or cylinder. This option is not allowed on fire rated openings.

Door Hand:

Direction in which the door opens. Face the pull side of the door ( for exit devices). If the hinges are on the right the door is RHR (right Hand Reverse Bevel) if the hinges are on the left the door is LHR (Left Hand Reverse Bevel).

See handing chart.

Mortise Panic:

An exit device designed with a lock body mortised into the door.

 

Mullion:

A vertical at the center of a pair of doors providing a stop for each door leaf. A mullion may be removable or fixed.

Rim Device:

An exit device with a surface mounted strike.

 

Sex Nuts & Bolts (SNB):

Fasteners to bolt the exit device or door closer hardware to an unreinforced metal door or an "UL" rated wood door. Also called through bolts.

Shims:

Plates used behind exit devices, to prevent interference with door mouldings or vision kits.

Strikes:

Metal parts usually attached to the frame in which the bolt(s) of a lock or exit device engages.

Trim:

Usually levers, pulls or knobs mounted on the exterior side of the door, where the locking or unlocking of the exit device is executed.

UL Listed Fire Hardware:

Exit devices fabricated under "UL" supervision to meet safe exit requirements during a fire.

UL Listed panic Hardware:

Exit devices fabricated under "UL" supervision to meet safe exit requirements during emergencies.

"UL"

Underwriters Laboratory, a testing facility.

Vertical Rod Device:

An exit device operated by bolts at the top and bottom of the door.