Where Does Travel Distance Start and Stop

[KRS5]

We are trying to determine if our travel distances are within the limits of the code for the occupancy of the building. We are creating two mezzanines for business use within a building classified as an industrial occupancy. We are finding that our travel distances from the mezzanine to an exit enclosure on the lower level is exceeding the 200' travel distance. Can we enclose the mezzanine stairs to create a vertical exit and restart our travel distance once we leave the exit stair and re-enter the lower level? So for example, if our travel distance from the most remote point on the mezzanine to the vertical stair enclosure is 50', can we travel down the exit stair, restart the travel distance at zero 0'-0" once we re-enter the lower level and continue to the nearest exit enclosure or exit discharge. Or does the exit need to be continuous from the stair to the exit discharge by means of an exit passageway? Thanks.

 

[mtlogcabin]

Once you enter an exit enclosure it must lead to an exit and not back into an exit access portion of the means of egress path

 

[mtlogcabin]

building classified as an industrial occupancy

Is it sprinkled? What specific occupancy classification do it meet? Industrial is not in the I-Codes

 

[redeyedfly]

Once you enter an exit enclosure it must lead to an exit and not back into an exit access portion of the means of egress path

Not necessarily.

See if 1028.1 Ex.1 applies.

 

[KRS5]

Is it sprinkled? What specific occupancy classification do it meet? Industrial is not in the I-Codes

Once you enter an exit enclosure it must lead to an exit and not back into an exit access portion of the means of egress path

We are required to comply with 1968 NYC Building Code and the 2014 NYC Building whichever is more restrictive- Its considered a D-1 Moderate-Hazard Industrial Occupancy fully Sprinklered (1968) or F-1 per (2014).

• So if travel distance can't "restart" we have to extend an exit passageway to the exit discharge or create an exit passageway to reduce the unenclosed exit access travel distance to be less than the 200' max.
• The building is currently mixed non-separated....What if we separate the Business Mezzanines from the remainder of the Industrial occupancy - still have to use the travel distance for the Industrial (1968) Occupancy?

 

[mtlogcabin]

1017.2.2 Groups F-1 and S-1 increase.
The maximum exit access travel distance shall be 400 feet (122 m) in Group F-1 or S-1 occupancies where all of the following conditions are met:

1. The portion of the building classified as Group F-1 or S-1 is limited to one story in height.

2. The minimum height from the finished floor to the bottom of the ceiling or roof slab or deck is 24 feet (7315 mm).

3. The building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.

 

[steveray]

NYC is it's own world....Are you the owner or designer or contractor?

 

[KRS5]

NYC is it's own world....Are you the owner or designer or contractor?

Designer - told by the owner/ client (gov't.) that it must comply with most restrictive of each. 1968 & 2014.

1017.2.2 Groups F-1 and S-1 increase.
The maximum exit access travel distance shall be 400 feet (122 m) in Group F-1 or S-1 occupancies where all of the following conditions are met:

1. The portion of the building classified as Group F-1 or S-1 is limited to one story in height.

2. The minimum height from the finished floor to the bottom of the ceiling or roof slab or deck is 24 feet (7315 mm).

3. The building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.

I think this would work if we could refer to the 2014 code, but alas we have to use the more restrictive 1968 NYC code req's. Wonder if similar language can be found in the 1968? I haven't seen it but will check.