Roof Egress Requirements

The egress from the space must be sized for the roof occupant load and must be continuous to the exit discharge at grade.

Roof egress requirements. The number of exit stairs required is specified in table 1006 3 1 of the code. Operation and maintenance requirements for exit routes. Nfpa emergency exit door requirements for locks. The means of egress serves a room with an occupant load above 50 people the means of egress is used in an exit enclosure or while serving a high hazard area while swinging the door should leave available at least half of the required width of a corridor hallway etc for use.

In summary free access to the roof from the stairwell is not required by the ibc or nfpa 101 but may be required or preferred by the local code official. 2 each exit route must be free of explosive or highly flammable furnishings and decorations. Los angeles fire code 10 means of egress 1006 numbers of exits and exit access doorways 1006 3 egress from stories or occupied roofs 1006 3 2 single exits. Egress window size and dimensions first lets look at the minimum opening area required.

Two exits are required for occupancies up to 500 persons. The minimum egress window opening height is 24 high. The minimum egress window opening is 20 wide. Minimum 5 7 square feet of net clear opening area.

Free egress from the roof to the stairwell is required for occupied roofs but is not mandated by the ibc or nfpa 101 for unoccupied roofs. A single exit or access to a single exit shall be permitted from any story or occupied roof where one of the following conditions exists. The egress window must have a glass area of not less than 8 of the total floor area of room s for which it is servicing to allow the minimum amount of sufficient natural light. The top rails of a guardrail system must be 39 to 45 inches above the walking working surface 29 cfr 1926 502 b 1.

The net clear opening area net clear height opening and net clear width opening. 1 each exit route must be maintained to minimize danger to employees during an emergency. This includes compliance with all of the following. The minimum opening area of the egress window is 5 7 square feet.

A the danger to employees must be minimized.