STORIES WITH ONE EXIT

[Rodrigo Rocha]

Hello, I'm doing the feasibility study for a new residential building in Miami Beach. It's a small building, for apartments with a total of 7,500sf. The maximum number of stories by the zoning code is 5 levels.
I'm placing parking spaces on the ground floor + 4 residential floors, so, 5 floors in total.

Reading the Section 1006: Number of Exits and Exit Access Doorways in the building code, table 1006.3.2(1), I noticed that I need at least 2 exits for R-2 buildings with more than 4 stories.

Is that possible? The building is very small and have only 4 apartments, if I place two exists stairs it would make the efficiency drops a lot...

Thanks

 

[e hilton]

Its also twice as safe as only one exit. Eliminate the top floor.

 

[mtlogcabin]

You are also limited to 4 dwelling units and a maximum 125 feet of travel distance per single exit

 

[e hilton]

You are also limited to 4 dwelling units and a maximum 125 feet of travel distance per single exit

That works. First floor is parking. Second floor is two apartments. Third and Fourth floor are larger full-floor apartment with higher rent.

 

[mtlogcabin]

I'm placing parking spaces on the ground floor + 4 residential floors, so, 5 floors in total.

No it does not work and I am willing to bet the travel distance will exceed 125 feet.

 

[classicT]

What type of construction is the building? Is it sprinkled?

You seem to be lacking many of the pertinent details in determining if it is even an allowable use. Means of egress will also depend upon the classification of the building.

 

[Rodrigo Rocha]

What type of construction is the building? Is it sprinkled?

It can be Type I, and yes, it will be sprinkled

 

[Builder Bob]

Also, remember the occupant load for the dwelling unit, if a dwelling unit is over 2000 square feet, it should be required to have two exits from the dwelling unit - 1004.1, 1006.2.1, etc.

 

[mtlogcabin]

Curious where you are getting the 2000 sq ft number from?

 

[ADAguy]

See his prior comment?

 

[Builder Bob]

occupant load table 100.1 200 gross residential x 10 (Table 1006.1) = 2000 SF threshold for requiring 2 exits for the dwelling unit.

 

[cda]

So a family of 9 is living in a dwelling, and one has triplets, does the owner have to install a second exit??

 

[mtlogcabin]

2018 Table 1006.2.1 MAXIMUM OCCUPANT LOAD OF SPACE
R-1 is 10 occupant load per space. 200 sq ft per person = 2,000 sq ft hotel room Table 1004.5
R-2-3 & 4 is 20 occupant load per space. 200 sq ft per person = 4,000 sq ft dwelling Table 1004.5

 

[ADAguy]

"Interesting" ever heard of slums & tenement housing? Touchy issue.

 

[Builder Bob]

small change in the code.....I will be in trouble about this one for a while until I beat it into my head. SC stars on the 2018 in January.