What is the NFPA reference for installing Above and below sprinkler ?
* If the distance between the false ceiling and the actual/concrete ceiling is more than 800 cm we shall install above and below sprinkler
NFPA does not says any false ceiling height restrictions to install sprinklers but it depends upon the fuel load in false ceiling areas.
Please refer NFPA 13-8.15.1 for details.
FYI : False ceiling height restrictions for sprinkler installations are the requirements of British Standards (BS) not NFPA.
Hope this will help.
You would have to check to see if the area complies with NFPA 13 requirements for a concealed space as Sandip mentioned above, but you may also be speaking to Cloud Ceilings which are just new to NFPA 13 (2016). See section 8.15.24. for those specific requirements.
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