Ibc Roof Access Stair

Stairways shall have handrails on each side which comply with section 1014.

Ibc roof access stair.

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. Access to setback roof areas may be through a door or window opening to the roof. In buildings four or more stories or more than 40 feet 12 192 mm in height above grade one stairway shall extend to the roof surface through a stairway bulkhead complying with section 1509 2 unless the roof has a slope steeper than 20 degrees 0 35 rad. Railing ibc code cheat sheet handrail 1.

Width and capacity ibc 1011 2 the number of occupants on each floor will determine the required width of the stairs. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures. 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. In order to access a 12 foot high platform an ibc stair would need 21 steps 7 inch rise 11 inch tread making the entire horizontal run of the stairs 19 25 feet.

In short the width is calculated by multiplying the occupant load served by such stairs by a factor of 0 3 inch per occupant. Los angeles fire code 10 means of egress 1011 stairways 1011 12 stairway to roof 1011 12 2 roof access 1011 12 2 means of egress roof access where a stairway is provided to a roof access to the roof shall be provided through a penthouse complying with section 1510 2. However the very minimum width between handrails is 44 inches. Roof access stairs are ibc osha compliant.

That s a lot of space used for a staircase. The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. Assuming the minimum width of 36 inches the floor space used by these stairs is 57 75 square feet. Stairways within dwelling units are permitted to have handrail on one side only 3.

Prefab roof access stairs are custom made to the specific size and building code requirements of your project.