Interior Exit Stairs
Exit Access Including Corridors Exit Basically The Enclosed Stair Exit Discharge Which Leads To The Public Way Egress Enclosed Staircase Building Systems
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The width of interior stairs shall be the clear width between walls grilles guards or newel posts.
Interior exit stairs. Interior exit stairway and ramp enclosures shall have a fire-resistance rating of not less than 2 hours where connecting four stories or more and not less than 1 hour where connecting less than four stories. The number of storiesshall be computed as all floor levels including basements but excluding mezzanines. Exit doors equipment and required duct work necessary for independent ventilation sprinkler piping standpipes electric raceways serving interior exit stair.
Penetrations into or through interior exit stairways and ramps are prohibited except for equipment and ductwork necessary for independent ventilation or pressurization sprinkler piping standpipes electrical raceway for fire department communication systems and electrical race-way serving the interior exit stairway and ramp and terminating at a steel box not exceeding 16 square inches. Vertical exit enclosures less than four stories shall be 1-hour fire-resistance rated. 1Except as provided in Sentence 2 required exit stairs and public stairs serving buildings of residential occupancy shall have a width of not less than 900 mm.
My question is this the building code 92015 IBC requires that I have 2 Exits off the 2nd floor but only one of these stairs. Another is an exterior stair that goes up a half flight - directly outdoors. Penetrations shall be protected.
Tactile sign with braille. Install on the public corridor side of a door serving both the stairs and the exit egress. This exit stair must be reached within the maximum exit travel distance including the stair path of travel.
Last Updated on Wed 06 Jan 2021 Interior Designers All exits must discharge to a safe place of refuge outside the building such as an exit court or public way at ground level. U frH An exit discharge at its simplest is a door opening from an exit stairway a corridor or the interior space of a building directly onto a public way or an outdoor space leading to a public way. Under both the exceptions not more than 50 of the number and minimum width or required capacity of the interior exit stairway or ramp is permitted through these areas on the level of discharge.
Install in the interior of an enclosed stairwell on the latch side of the door leading out onto the level. Vertical exit enclosures shall be constructed as fire barriers in accordance with Section 706. An exit court may be a courtyard patio Figure 43-1 Fire exit stairs.
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