Looking for information or code related to trampoline parks, is there currently anything requiring sprinklers below the trampolines in the concealed space?
I would think if there was no access for storage of materials, no mechanical/electrical equipment such as blowers for inflatables, and the exposed materials in the concealed space were non- or limited - combustible, and rigid materials has low flame spread and smoke development index 25 or less per the concealed space requirements of 2019 NFPA 13 Section 9.2, the sprinklers may be omitted in that location.
This would be governed by NFPA 13. I think it would depend on the arrangement. When I hear "trampoline park", I picture multiple trampolines possibly recessed (i.e. the surface is nearly flush with the floor) with the surrounding pit filled with foam blocks. This was the arrangement when my 5 year old took gymnastics. Such an arrangement would be considered a fixed, non-continuous obstruction greater than 4 feet wide. This is not a hazard one should take lightly.
There are no specific extinguishment codes in the building safety codes (IBC or NFPA 5000 or NFPA 101) for trampoline parks. However within those codes, the occupancy classification and/or the building type may have provisions for extinguishment systems using NFPA 13 as the installation standard. 2019 NFPA 13 has some basic requirements for sprinkler locations in Section 9.1. The space under the trampolines must be sprinklered in accordance with Section 9.1.1 unless they are permitted to be omitted by another section of the standard. Section 9.2 has provisions where sprinklers may be omitted.
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