Does "at least 1 inch of space between each panel" mean several feet of space between each panel, or does it mean just a couple of inches.
To me, it sounds more like you would have to treat them as grouped obstructions and protect underneath. -Kyle M -----Original Message----- From: Sprinklerforum <[email protected]> On Behalf Of Dane Long via Sprinklerforum Sent: Friday, February 12, 2021 2:29 PM To: [email protected] Cc: Dane Long <[email protected]> Subject: [EXTERNAL] Noncontinuous obstructions More than 18" down Seeking others opinions.... I'm doing an Elementary school where in the commons area they have 4ft. by 8ft. tectum ceiling panels space throughout with at least 1" of space between each panel. These panels are slopes with the roof in one direct and then away from the roof in another. A8.6.5.3.3 Per NFPA 13 (2016) "A.8.6.5.3.3 When obstructions are located more than 18 in. (450 mm) below the sprinkler deflector, an adequate spray pattern develops and obstructions up to and including 4 ft (1.2 m) wide do not require additional protection underneath. Examples are ducts, decks, open grate flooring, catwalks, cutting tables, overhead doors, soffits, ceiling panels, and other similar obstructions. The width of an object is the lesser of the two horizontal dimensions (with the length being the longer horizontal dimension). Sprinkler protection is not required under objects where the length is greater than 4 ft (1.2 m) and the width is 4 ft (1.2 m) or less." Doesn’t seem to me like I need protection below these panels. *Send me a private email if you'd like to look at the pdf. Thanks, Dane Long, AET Engineering Technician | Bamford Fire Sprinkler Co., Inc. P: 785.825.7710 F: 785.825.0667 A: 1383 W. North Street Salina, KS 67401 -----Original Message----- From: Sprinklerforum <[email protected]> On Behalf Of Ron Greenman via Sprinklerforum Sent: Friday, February 12, 2021 2:35 PM To: [email protected] Cc: Ron Greenman <[email protected]> Subject: Re: Multiple System Calculation This sounds like a job for more sheetrock. Oh, and more cowbell is always good. On Fri, Feb 12, 2021 at 10:57 AM Sean Conlin via Sprinklerforum < [email protected]> wrote: > See NFPA-13, 23.4.4.1.1.4 and 23.4.4.1.1.5. > > > > This should help you with the engineer. > > > Regards, > > Sean W. Conlin, A.Sc.T. > Director > Demand Sprinkler Design Inc. > 37 Summerfield Crescent > Brampton, ON L6X 4K4 > T: 905-216-0922 > C: 416-317-0028 > E: [email protected] > > This message, including any attachments is considered confidential and > for use only by the intended recipient(s). > Any other distribution, copying or disclosure is strictly prohibited. > Please delete this communication and notify Demand Sprinkler Design > Inc. if you are not the intended recipient or have received this > message in error. Demand Sprinkler Design Inc. accepts no > responsibility or liability for any loss or damage from use, including > damage from viruses. > > > > -----Original Message----- > From: Joe Burtell <[email protected]> > Sent: February 11, 2021 1:47 PM > To: [email protected] > Subject: Multiple System Calculation > > > > I have a situation where an engineer is telling me I have to calculate > a wet and dry system together because neither space meets the 1500 s.f > minimum. I have a penthouse mechanical room OH 1 (WET) of 1014 s.f. > and an adjacent room OH1 (DRY) of 469 s.f. I have calculated each room > separate of each other. There is a full-height wall with a door that > separates the rooms. The wall and door are not fire rated, so the > large room method is out. This does not make any sense to me. Any > sections that would require this to be done. He is saying 11.1.2 of > NFPA 13 2016 requires it. I argue exception #2 says it does not apply. > > > > Best regards, > > > > *Joe Burtell, SET, CFPS* > > > > [image: Burtell Fire_Small] > > > > Phone | Fax | Mobile| Text *406-204-4653 <++1-406-204-4653>* > > > > 116 N. 11th Street | Billings, MT 59101 > > > > Email: [email protected]<mailto:[email protected]> > > > > Web Site: > https://urldefense.proofpoint.com/v2/url?u=http-3A__www.burtellfire.co > m&d=DwIGaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7n > LN8OBJwQd9A&m=YiHEM_F8z0hFdXcjHH1CqWJ0eIkSBYspd-WeDgZrxAI&s=Ur5xExeUb- > o3ipcDAOmkBHLKgAtIDEQsMndg_0EjUcg&e= > > > > *“**The bitterness of poor quality remains long after the sweetness of > low price is forgotten.**”* > > > > *NOTICE:* The information contained in this e-mail transmission is > intended only for use of the individual or entity named above. This > e-mail transmission, and any documents, files, previous e-mail > transmissions or other information attached to it, may contain > confidential information that is legally privileged. If you are not > the intended recipient of this e-mail transmission, or the employee or > agent responsible for delivering it to the intended recipient, you are > hereby notified that any disclosure, dissemination, distribution, > copying or other use of this transmission or any of the information > contained in or attached to this e-mail is strictly prohibited. If > you have received this e-mail transmission in error, please > immediately notify us by return e-mail transmission and destroy the > original e-mail transmission as well as its attachments without reading or > saving it in any manner. Thank you. > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkle > r.org_listinfo.cgi_sprinklerforum-2Dfiresprinkl&d=DwIGaQ&c=wn3mZQLIuIn > h2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=YiHEM_F8z0 > hFdXcjHH1CqWJ0eIkSBYspd-WeDgZrxAI&s=nlsG4VxOfTf_UUzkx-rk2ydjg94XokZb0n > Q1PfqK6y0&e= > er.org > _______________________________________________ Sprinklerforum mailing list [email protected] https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwIGaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=YiHEM_F8z0hFdXcjHH1CqWJ0eIkSBYspd-WeDgZrxAI&s=LM0CNMnj-rd36HlSudxjbeoR5nCGKZrNT_CE45iTC5U&e= _______________________________________________ Sprinklerforum mailing list [email protected] https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwIGaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=YiHEM_F8z0hFdXcjHH1CqWJ0eIkSBYspd-WeDgZrxAI&s=LM0CNMnj-rd36HlSudxjbeoR5nCGKZrNT_CE45iTC5U&e= _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
