Wednesday, June 11, 2008

Means of Egress and Fire Codes

Means of Egress
1003.2 Ceiling height. The means of egress shall have a ceiling height of not less than 7 feet.

1003.3 Protruding objects.
1003.3.1 Headroom. Protruding objects are permitted to extend below the minimum ceiling height required by Section 1003.2 provided a minimum headroom of 80 inches shall be provided for any walking surface, including walks, corridors, aisles and passageways. Not more than 50 percent of the ceiling area of a means of egress hsall be reduced in height by protruding objects.
1003.3.2 Free-standing objects. A free-standing object mounted on a post or pylon shall not overhang that post or pylon more than 12 incles where the lowest point of the leading edge is more than 27 inches and less than 80 inches above the walking surface. Where a sing or other obstruction is mounted between posts or pylon and the clear distance between the posts or pylons is greater than 12 inches, the lowest edge of such sign or obstruction shall by 27 inches ma or 80 inches min above the finish floor or ground.
Exception: This requirement shall not apply to sloping portions of handrails serving stairs and ramps.
1003.3.3 Horizontal Projections. Structural elements, fixtures or furnishings shall not project horizontally from either side more than 4 inches over any walking surface between the heights of 27 inches and 80 inches above the walking surface.
Exception: Handrails serving stairs and ramps are permitted to protrude 4.5 inches from the wall.

1003.4 Floor Surface. Walking surfaces of the means of egress shall have a slip-resistant surface and be securely attached.

Table 1004.1.2 Maximum Floor Area Allowances Per Occupant
Occupancy Floor Area in Sq Ft per Occupant
Assembly without fixed seats
Concentrated (unfixed chairs only) 7 net
Standing Space 5 net
Unconcentrated (tables and chairs) 15 net
Eductational: Classroom Area 20 net
Kitchen: commercial 200 gross
Stages and platforms 15 net

1004.3 Posting of occupant load. Every room or space that is an assembly occupancy shall have the occupant load of the room or space posted in a conspicuous place, near the main exit or exit access doorway from the room or space. Posted signs shall be of an approved legible permanent design and shall be maintained by the owner or authorized agent.

Table 1005.1 Egress Width Per Occupant Served- With Sprinkler System
Occupancy
Stairways (inches per occupant)
Other egress components (inches per occupant)
A-3, E
0.2
0.15

1005.2 Door encroachment. Doors opening into the path of egress travel shall not reduce the required width to less than one-half during the course of the swing. When fully open, the door shall not project more than 7 inches into the required width.

1008.1 Size of doors. The minimum width of each door opening shall be sufficient for the occupant load thereof and shall provide a clear width of not less than 32 inches. Clear openings of doorways with swinging doors shall be measured between the face of the door and the stop, with the door open 90 degrees. Where this section requires a minimum clear width of 32 inches and a door opening includes two door leaves without a mullion, one lea shall provide a clear opening width of 32 inches. The maximum width of a swinging door leaf shall be 48 inches nominal.

1008.1.3.2 Power-operated doors. Where means of egress doors are operated by power, such as doors with a photoelectric-actuated mechanism to open the door upon the approach of a person, or doors with power-assisted manual operation, the design shall be such that in the event of power failure, the door is capable of being opened manually to permit means of egress travel or closed where necessary to safeguard means of egress. The door shall be capable of swinging from any position to the full width of the opening in which such door is installed when a force is applied to the door on the side from which egress is made.

1011.1 Where required. Exits and exit access doors shall be marked by an approved exit sign readily visible from any direction of egress travel. Access to exits shall be marked by readily visible exit signs in cases where the exit or the path of egress travel is not immediately visible to the occupants. Exit sign placement shall be such that no point in an exit access corridor is more than 100 feet or the listed viewing distance for the sign, whichever is less, from the nearest visible exit sign.

1014.1 Exit or exit access doorways required. Two exits or exit access doorways for Occupancy A from any space shall be provided when the maximum occupant load exceeds 50.

1016.3 Dead ends. Where more than one exit or exit access doorway is required, the exit access shall be arranged such that there are no dead ends in corridors more than 20 feet in length.

1020.2 Width. The width of exit passageways shall be determined as specified in Section 1005, but such width shall not be less than 44 inches, except that exit passageways serving an occupant load of less than 50 shall not be less than 36 inches in width.

Fire Codes
Information was found from these sources:
http://ecodes.iccsafe.org/

ADA Codes
http://www.access-board.gov/adaag/html/adaag.htm

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