Timothy M. Stone
REGISTERED
I am not finding anything in 2015 IBC requiring me to separate exit access stair from a (B) occupancy mezzanine. Is there anyone with a different take chapter and verse?
Thanks
Thanks
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Exit acces stair separation requirement
- Thread starter Timothy M. Stone
- Start date
steveray
SAWHORSE
By separate, you mean fire rate? Typically NR for mezzanine....Occupant load? Only stair? Open or closed mezz?
Mr. Inspector
SAWHORSE
1023.2 Construction. Enclosures for interior exit stairways
and ramps shall be constructed as fire barriers in accordance
with Section 707 or horizontal assemblies constructed in
accordance with Section 711, or both. 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 stories connected by the interior exit stairways
or ramps shall include any basements, but not any mezzanines.
Interior exit stairways and ramps shall have a fireresistance
rating not less than the floor assembly penetrated,
but need not exceed 2 hours.
Exceptions:
1. Interior exit stairways and ramps in Group I-3 occupancies
in accordance with the provisions of Section
408.3.8.
2. Interior exit stairways within an atrium enclosed in
accordance with Section 404.6.
and ramps shall be constructed as fire barriers in accordance
with Section 707 or horizontal assemblies constructed in
accordance with Section 711, or both. 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 stories connected by the interior exit stairways
or ramps shall include any basements, but not any mezzanines.
Interior exit stairways and ramps shall have a fireresistance
rating not less than the floor assembly penetrated,
but need not exceed 2 hours.
Exceptions:
1. Interior exit stairways and ramps in Group I-3 occupancies
in accordance with the provisions of Section
408.3.8.
2. Interior exit stairways within an atrium enclosed in
accordance with Section 404.6.