Is it permissible to have an NFPA 13 and 13R system in the same building, or by code is it an all-or-nothing prescriptive standard? The most common scenario we would see this apply is with first-floor retail/mixed use construction with residential above.
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6 Comments
Robert Blakeman
1/25/2019 10:07:19 am
You cannot mix the two unless the two areas of the building are considered separate buildings under the building code.
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Claude
1/25/2019 10:30:46 am
If a residential building has an enclosed underground car park, do you use NFPA 13 for the car park and use 13R for the building
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Dave
1/25/2019 10:48:47 am
While 13R is unlike 13 in that 13R is life safety, there are such scenarios, like the popular pedestal/podium scenario discussed here by Matt Klaus:
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sean
1/25/2019 12:53:52 pm
the example you give, a mixed use retail first floor and residential apartments above could be a special building in the IBC a podium building and technically two buildings.
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James
2/13/2019 11:31:46 am
Like other's have said, it isn't permitted unless the buildings are considered to be constructed as separate buildings under the local code. Go into the explanatory information for Section 1.1 of NFPA 13R:
Reply
miles
3/5/2020 12:32:31 am
A very thorough answer to this question can be found here:
Reply
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