From a fire fighting perspective an occupied roof area functions as a story even though it technically does not meet the definition of a story.
Occupied roof ibc.
In area which serves not more than 5 people.
Ibc 2018 section 302 1 which covers occupancy group definitions includes the following to clarify how occupied roofs are classified.
2009 ibc code occupied or unoccupied roof.
Occupied roofs shall be classified in the group that the occupancy most nearly resembles according to the fire safety and relative hazard involved and shall comply with section 503 1 4.
But nowhere in the ibc is a occupied roof defined.
Phitowninvest history contact.
Furthermore to complicate things 1003 3 3 10 alternating treade devices states a t d.
A roof level or portion thereof shall be permitted to be used as an occupied roof provided the occupancy of the roof is an occupancy that is permitted by table 504 4 for the story immediately below the roof.
Hi all i just submitted for a building permit and i m having issues with my roof.
They are requiring a 50ft travel distance from my roof to my exit enclosure and i have 75 i m first wondering if that only applies if the roof is occupied and secondly.
Table 1019 2 governs the number of exits per story and the maximum allowable travel distance for a single exit.
A single exit or access to a single exit shall be permitted in accordance with section 1006 3 2.
Are limited to an element of a means of egress in buildings of groups f h and s from a mezzanine not more than 250 s f.
Section 503 1 4 1 sets limits on the height of any barriers or obstacles around the occupied roof area so that it does not function as a story.
The ibc commentary further explains.