US
SI
Cloud Ceilings
Cloud & Ceiling
Openings
Room
NFPA 13 Edition
2016
2019
2022
2025
Calculated Values
X
Gap per Height
–
in gap
/ ft clg
A
O
/A
R
Opening Area Ratio
NFPA 13-2016 8.15.1.2.1.2
–
%
Maximum Sprinkler Protection Area
–
ft²
Schematic Section of Cloud Ceiling Arrangement
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