I always handle these situations in this manner: If I can’t find something in the code/standard to support my position, then I’m not going to be the one signing off on it. If you have an FPE that is willing to sign off and take the liability for it, then let them make that call. If the contractor customer is saying “we did it this way before,” that doesn’t carry the same weight.
Again, not saying it won’t work. But, what do you have to support your layout if something were to go wrong? <http://www.mfpdesign.com/> Travis Mack, CFPS, CWBSP, RME-G, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 NEW EXTENSION: 480-505-9271 ext. 700 fax: 866-430-6107 <mailto:tm...@mfpdesign.com> tm...@mfpdesign.com www.mfpdesign.com Send large files to us via: <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.hightail.com%2Fu%2FMFPDesign&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=eGdMZGu2wXhUupGwgGTrqF3b54OP5%2BAZvlHhABSexWY%3D&reserved=0> https://www.hightail.com/u/MFPDesign LinkedIn: <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.linkedin.com%2Fin%2Ftravismack&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=tT5E7LsZjSmyreKi4gDCa70EWN%2BZodi%2FhbeCbHNRijI%3D&reserved=0> https://www.linkedin.com/in/travismack “The bitterness of poor quality remains long after the sweetness of low price is forgotten.” From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of Richard Mote via Sprinklerforum Sent: Thursday, March 19, 2020 5:34 PM To: sprinklerforum@lists.firesprinkler.org Cc: Richard Mote <spri...@aol.com> Subject: Re: Spacing ESFR-17 Sprinkler at new interior wall There are no obstructions to the spray pattern on the side away from the wall. Also was told the area immediately below the sprinkler in question is an 10' isle way for forklift travel with a steel guideway 2' away from the wall so the nearest possible storage is at least 8' away from the row of sprinklers in question and has a row of sprinklers directly over the end of the storage. -----Original Message----- From: Pete Schwab via Sprinklerforum <sprinklerforum@lists.firesprinkler.org <mailto:sprinklerforum@lists.firesprinkler.org> > To: Richard Mote <spri...@aol.com <mailto:spri...@aol.com> >; 'sprinklerforum@lists.firesprinkler.org' <sprinklerforum@lists.firesprinkler.org <mailto:sprinklerforum@lists.firesprinkler.org> > Cc: Pete Schwab <pe...@waynefire.com <mailto:pe...@waynefire.com> > Sent: Thu, Mar 19, 2020 4:35 pm Subject: RE: Spacing ESFR-17 Sprinkler at new interior wall Just because someone “signed off” on it does not make it right. In the event that there is a fire and a high dollar commodity is consumed (IE: Corona vaccine), and the special expert comes in and immediately sees a blatant code violation….. (Then again if it is an FM property and they approved they are the AHJ). On the other hand, there has been recent testing for ESFR obstructions and I would present that as an equivalency. I personally feel what you have will work fine Pete Schwab From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Richard Mote via Sprinklerforum Sent: Thursday, March 19, 2020 6:25 PM To: sprinklerforum@lists.firesprinkler.org <mailto:sprinklerforum@lists.firesprinkler.org> Cc: Richard Mote <spri...@aol.com <mailto:spri...@aol.com> > Subject: Re: Spacing ESFR-17 Sprinkler at new interior wall Just talked to the salesman that sold the job. He says that this room is identical to one adjacent to it and that the previous contractor (which did the original roof installation) did exactly as I was proposing. Don't think they were right but they are a 10 times bigger company than the one I am doing this project for. He basically told me to draw up something to submit. He was going to tell the installers to just duplicate what was already there. FM signed off on it so who am I to argue. By the way I tried moving back up the line, but with 2'-6" between sprinkler and bar joist on each side, I was 5 sprinklers back and it still wasn't working out. -----Original Message----- From: Travis Mack, SET, CFPS, CWBSP, RME-G via Sprinklerforum <sprinklerforum@lists.firesprinkler.org <mailto:sprinklerforum@lists.firesprinkler.org> > To: 'Richard Mote' <spri...@aol.com <mailto:spri...@aol.com> >; sprinklerforum@lists.firesprinkler.org <mailto:sprinklerforum@lists.firesprinkler.org> Cc: Travis Mack, SET, CFPS, CWBSP, RME-G <tm...@mfpdesign.com <mailto:tm...@mfpdesign.com> > Sent: Thu, Mar 19, 2020 2:40 pm Subject: RE: Spacing ESFR-17 Sprinkler at new interior wall I’m not saying it won’t work. But, there is nothing you have to hang your hat on should there ever be an issue. I always tell customers to figure moving 3-5 sprinklers on a branch line whenever you have a wall cause ESFR issues. <http://www.mfpdesign.com/> Travis Mack, CFPS, CWBSP, RME-G, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 NEW EXTENSION: 480-505-9271 ext. 700 fax: 866-430-6107 tm...@mfpdesign.com <mailto:tm...@mfpdesign.com> www.mfpdesign.com <http://www.mfpdesign.com/> Send large files to us via: https://www.hightail.com/u/MFPDesign <https://na01.safelinks.protection.outlook.com/?url=https%25253A%25252F%25252Fwww.hightail.com%25252Fu%25252FMFPDesign&data=02%25257C01%25257C%25257C1121d49f9e6b4cf248f108d4df580e77%25257C14e5497c16da42e69ffa77d19bafe511%25257C0%25257C0%25257C636379016677342180&sdata=eGdMZGu2wXhUupGwgGTrqF3b54OP5%25252BAZvlHhABSexWY%25253D&reserved=0> LinkedIn: https://www.linkedin.com/in/travismack <https://na01.safelinks.protection.outlook.com/?url=https%25253A%25252F%25252Fwww.linkedin.com%25252Fin%25252Ftravismack&data=02%25257C01%25257C%25257C1121d49f9e6b4cf248f108d4df580e77%25257C14e5497c16da42e69ffa77d19bafe511%25257C0%25257C0%25257C636379016677342180&sdata=tT5E7LsZjSmyreKi4gDCa70EWN%25252BZodi%25252FhbeCbHNRijI%25253D&reserved=0> “The bitterness of poor quality remains long after the sweetness of low price is forgotten.” From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org <mailto:sprinklerforum-boun...@lists.firesprinkler.org> > On Behalf Of Richard Mote via Sprinklerforum Sent: Thursday, March 19, 2020 2:28 PM To: sprinklerforum@lists.firesprinkler.org <mailto:sprinklerforum@lists.firesprinkler.org> Cc: Richard Mote <spri...@aol.com <mailto:spri...@aol.com> > Subject: Spacing ESFR-17 Sprinkler at new interior wall Have a job with existing ESFR-17 pendent sprinklers at the roof. Joist spacing is 5' oc with sprinklers centered between every other joist, thus 10' oc. The lines are on 10' centers so nice 100 sq. ft. per sprinkler. Tennent comes along and builds a room exactly 60' wide x 60' deep. Basically 1 bay wide x 1 column bay deep. 10" away from a row of sprinklers inside the room so no problem. However the row of sprinkler outside the room is now 8' away from the wall. If I plug and move that row of sprinklers 1'-4" away from the wall and then place a row 8' away toward the wall, the sprinklers adjacent to the wall are only 9¾" off the CL of the joist. My thinking is that since there is a wall 3 " away from the other side of the joist, spraying past the joist is not an issue. What say you? Richard L. Mote, CET Rimrock Design Services, LLC P.O. Box 36 Middleburg, PA 17842 Ph. 928.821.8725 & 570.541.2685 Email: rimrock.design.servi...@gmail.com <mailto:rimrock.design.servi...@gmail.com> Web: https://rimrockdesignservices.com <https://rimrockdesignservices.com/> _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org <mailto:Sprinklerforum@lists.firesprinkler.org> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org <mailto:Sprinklerforum@lists.firesprinkler.org> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
_______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
