Correct. That seems to be a fallacy that people locked on to long ago and never let go of. NFPA 13D is for one and two family dwellings. For a single family home it is not required. If you are doing a duplex (a two family dwelling) then you add the demand.
Travis Mack, SET MFP Design, LLC "Follow" us on Facebook: https://www.facebook.com/pages/MFP-Design-LLC/92218417692 Send large files to MFP Design via: https://www.hightail.com/u/MFPDesign Sent from my iPhone > On Aug 17, 2017, at 8:53 PM, Owen Evans <[email protected]> wrote: > > I have always added 5 gpm domestic flow at the riser when calculating a 13D > system for a SFR. Last night I was having a hard time falling asleep so I > thought I would break out the 2016 edition of 13D and start reading, surely I > would fall asleep quickly. I got to 6.5 Common Supply Pipes, 6.5.2 which > states; In common water supply connections servicing more that one dwelling > unit, 5 gpm shall be added to the sprinkler system demand to determine the > size of common piping and the size of the total water supply > requirements...yada, yada, yada. > > So reading 6.5.2 I interpret that if it is a SFR (one unit) I am not required > to add 5 gpm domestic into the calculations, correct? > > Owen Evans > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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