What are the three elements of egress from a building?

As a reminder, the means of egress is made up of three parts: the exit access, the exit and the exit discharge.

What is a required means of egress?

In building code, a means of egress is a way to exit a property in the case of a fire or other emergency. Every apartment or other residence must have at least two means of egress. These can be door, windows, ramps, corridors, or fire escapes. An elevator is not considered a means of egress.

Do all means of egress need to be accessible?

An accessible means of egress, as defined by the IBC, is a “continuous and unobstructed way of egress travel from any point in a building or facility that provides an accessible route to an area of refuge, a horizontal exit, or a public way.” Where more than one means of egress is required from any accessible space.

What is the maximum length of a corridor with a dead end?

50 feet
1.1, the length of the dead-end corridors shall not exceed 50 feet (15,240 mm). 3. A dead-end corridor shall not be limited in length where the length of the dead-end corridor is less than 2.5 times the least width of the dead-end corridor.

Where two or more exits are required?

(a) Every building or usable portion thereof shall have at least two exits to permit prompt evacuation of employees and other building occupants during an emergency.

What is the capacity for means of egress?

1005.3. The capacity, in inches, of means of egress components other than stairways shall be calculated by multiplying the occupant load served by such component by a means of egress capacity factor of 0.2 inch (5.1 mm) per occupant.

Do both exits need to be accessible?

Accessible spaces must be served by at least two accessible means of egress with few exceptions. Accessible means of egress must extend from all accessible portions of a room or space. The IBC specifies maximum travel distances to reach an exit.

What is a secondary means of egress?

The secondary means of escape shall be an outside window or door operable from the inside without the use of tools, keys, or special effort and shall provide a clear opening of not less than 5.7 sq. ft.

What counts as a dead end corridor?

A dead-end corridor has an exit in only one direction. For life safety (for example, to escape during a fire) corridors should have exit access from both directions. You can avoid dead-end corridors altogether with correct space planning.

What is the maximum length of a dead end corridor without a sprinkler system according to the International building Code?

1.1, the length of dead-end corridors shall not exceed 50 feet (15 240 mm).

How is egress calculated?

To determine the egress capacity of a door, or how many people a door will accommodate, divide the clear opening width of the door by 0.2 inches per occupant or 0.15 inches per occupant (see above to choose which factor to use).

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