Reduce design area?
Reduce design area?
(OP)
I have seen fire sprinkler drawings for a school where the design area was reduced to 900 sq.ft.. Is this permitted by NFPA 13? I could not find it in the 2002 version. Some of the heads were extended coverage, some were standard pendent heads. Coverage density was 0.1 gpm/sq.ft.
Maybe it is a new exception in NFPA 13?
Maybe it is a new exception in NFPA 13?





RE: Reduce design area?
RE: Reduce design area?
Travis Mack
MFP Design, LLC
RE: Reduce design area?
RE: Reduce design area?
RE: Reduce design area?
RE: Reduce design area?
RE: Reduce design area?
So, they may still be able to take the QR reduction.
Good luck with the project.
Travis Mack
MFP Design, LLC
RE: Reduce design area?
So, they may still be able to take the QR reduction."
I'm not sure that I understand this - could the same sprinkler be defined as QR or SR, only depending on the hazard classification?
Normally SR has a 5 mm. bulp and a QR 3 mm. Or am I totally wrong here?
RE: Reduce design area?
However, based on testing, the EC-11 by Tyco is both SR and QR, depending on spacing and classification. You must read the data sheet very carefully for the criteria.
Good luck!
Travis Mack
MFP Design, LLC