Ibc Roof Access Stairs

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.

Ibc roof access stairs.

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. Another ibc code clarification request. However the very minimum width between handrails is 44 inches. Access to setback roof areas may be through a door or window opening to the roof.

In buildings without an occupied roof access may be by an alternating tread device. In buildings located four or more stories in height one stairway shall extend to the roof. Assuming the minimum width of 36 inches the floor space used by these stairs is 57 75 square feet. 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.

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 short the width is calculated by multiplying the occupant load served by such stairs by a factor of 0 3 inch per occupant. That is because each of our stair systems is uniquely designed to meet the customer s requirements as far as layout and aesthetic. Access stairs for ibc osha code compliance panel built s prefabricated steel stair systems can be found everywhere from hospitals to warehouses to military bases.