NFPA 13R

[cdafd]

I saw a question on another site, and had not heard it before.

So say you have an apartment with four stories above grade.

NFPA 13R is allowed.

What if the same building had four stories residential below grade, also???

Can the 13R still be used through out?

 

[stookeyfpe]

Depends on the building code in effect at the time of the project was permitted, the number of feet the lowest basement level is below the highest level of FD access, the construction classification, and the fire area. My answer is based on the 2015 International Building Code and assuming all stories below the grade plane are Group R-2.

 

[cdafd]

Thanks again

Love the unusual questions that come