Help please....
Situation in a NFPA 13 hotel...:
There is a 1'-0" wide soffit by 4" deep adjacent to a restroom wall. If I
place res sidewall 4" under soffit the deflector would then be 8" below
the higher ceiling past the 1'-0" soffit.
Although I am very conservative with calcs in general - this one hurts the
pipe sizes bigtime so I am asking if my conservative approach is
technically correct or overkill:
Question #1 - Do I have to calculate the head for the 6"-12" distance below
the ceiling or can I use the 4"-6" range?
Question #2 - When you do a 4 head Res calc in a 13 building, do you define
"adjacent" by linear distance or do you purposely go for the sidewall in
the next room even if it is further away in order to be conservative? IW -
the nearest pendent in the next room is 4' away, going the other direction,
the sidewall in the next room is 10' away.V's are sidewalls and + are
pendents....thats as close as I can get at this hour.
I I I V I
V
I I I I
I + I + I + I
+
I I I I
Greg McGahan
Living Water Fire Protection, LLC <http://www.livingwaterfp.com>
1160 McKenzie Road
Cantonment, FL 32533
850-937-1850
fax 850-937-1852
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