Potential errors in PJM Day 20 video. 2021 IBC Table 504.3 & 504.4 indicate NS values for R-2 occupancy are for evaluation of existing buildings only (footnote d) and that new R-2 occupancies are to be fully sprinklered (footnote h). The scenario is for a new non-sprinklered 3 story building without fire separation between the A-2 & R-2 occupancies which would not be permitted unless I am misunderstanding something.
Also, PJM Day 20 video suggests that having a new unsprinklered, nonseparated R-2 occupancy on a 3rd story is acceptable as long as there are only two R-2 stories per 2021 IBC Table 504.4 while I am seeing Upcodes diagrams suggesting that placing it on the 3rd story is a violation of the 2 story limitation. I’m not sure if Upcodes or Black Spectacles is correct in that interpretation of the story limitations. This is aside from footnote h indicating that R occupancies must be sprinklered.
Finally, the same video states that IBC Table 506.2 limits A-2 nonsprinklered areas to 5500 sf. I’m seeing that the limitation is 6000 sf when I check the 2021 IBC for that occupancy for type VB construction. Am I missing something here?
Let me know what you think and thanks for any clarification you can provide. Sorry if I am mistaken in anything.
