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Electrical equipment rooms, closets, bank vaults, or walk-in coolers and freezers, do not require sprinklers? Q&A

jar546

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Question​

Is it true that certain areas, such as electrical equipment rooms, closets, bank vaults, or walk-in coolers and freezers, do not require sprinklers?

Answer​

This is a common misunderstanding. Sprinkler systems are generally required in all spaces within a building, unless explicitly exempted by a specific section in NFPA 13. While there are some newly recognized areas where sprinklers might not be necessary, these exceptions are not widespread and haven't been fully addressed by the technical committee.

The foundational principle of NFPA 13, established since its first edition in 1896, is that sprinklers should be installed throughout all areas of a building. The original standard stated “sprinklers to be placed throughout premises” in the section on location and arrangement of sprinklers. This approach was initially driven by insurance considerations to ensure comprehensive risk mitigation. Over time, the enforcement of sprinkler requirements has shifted to building and fire codes rather than insurance mandates.

It's important to note that NFPA 13 is not formatted to specify every single area that must have sprinklers. Instead, it mandates sprinkler coverage throughout the parts of the building that include the protected occupancy, which often means the entire building. There are a few specific and relatively recent exceptions to this rule, which are based on particular conditions outlined in the standard. Nonetheless, even in mixed occupancy buildings where only one occupancy might be sprinklered according to the building code, NFPA 13 should still be applied comprehensively within the protected areas to ensure the building is considered fully sprinklered.
 
unless explicitly exempted by a specific section in NFPA 13
The Building Code is specific and over rides a standard.
Do you think a room that might be specified in NFPA as exempt but not included in the IBC would still be allowed?

2018 IBC
[F] 903.3.1.1.1 Exempt locations.
Automatic sprinklers shall not be required in the following rooms or areas where such rooms or areas are protected with an approved automatic fire detection system in accordance with Section 907.2 that will respond to visible or invisible particles of combustion. Sprinklers shall not be omitted from a room merely because it is damp, of fire-resistance-rated construction or contains electrical equipment.

1. A room where the application of water, or flame and water, constitutes a serious life or fire hazard.

2. A room or space where sprinklers are considered undesirable because of the nature of the contents, where approved by the fire code official.

3. Generator and transformer rooms separated from the remainder of the building by walls and floor/ceiling or roof/ceiling assemblies having a fire-resistance rating of not less than 2 hours.

4. Rooms or areas that are of noncombustible construction with wholly noncombustible contents.

5. Fire service access elevator machine rooms and machinery spaces.

6. Machine rooms, machinery spaces, control rooms and control spaces associated with occupant evacuation elevators designed in accordance with Section 3008.
 
The Building Code is specific and over rides a standard.
There are states and jurisdiction where the building code and fire codes are completely separated with different AHJs. This is why I posted this in the NFPA section of the forum and not in the Building Code or IFC section. This answer is from the NFPA directly and directed to those that work under this standard and may be taking tests based on this standard.
 
I'm not sure I could agree that the building code requiring a building is sprinklered throughout overrides the NFPA 13 exemptions. I feel like the code would need to expressly require the exempted areas to be sprinklered for it to overrule NFPA 13.

Kind of a general vs. specific requirement thing...
 
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