I would take a look at NFPA 13 section: 9.1.1.6.3 (2019 Edition). "holes thru structural members shall be permitted to serve as hangers for the support of system piping, provided such holes are permitted by applicable building codes and the spacing and support provisions for hangers of this standard are satisfied".
John Pritchard -----Original Message----- From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of John Denhardt via Sprinklerforum Sent: Wednesday, September 30, 2020 8:59 AM To: sprinklerforum@lists.firesprinkler.org Cc: John Denhardt <jdenha...@firesprinkler.org>; Matthew J Willis <ma...@rapidfireinc.com> Subject: [EXTERNAL] Re: Hangers for CPVC Pipe going through TGI Joists Agree - the structure is the support. Restraints or chafing protectuion might be needed. 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On Wed, Sep 30, 2020 at 9:50 AM Matthew J Willis via Sprinklerforum < sprinklerforum@lists.firesprinkler.org> wrote: > No, but they do require bushings or some sort of other method to > prevent chafing. > > Assuming round holes and no side to side movement expected. > > R/ > Matt > > -----Original Message----- > From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> > On Behalf Of Mike Hairfield via Sprinklerforum > Sent: Wednesday, September 30, 2020 6:39 AM > To: Sprinkler Forum <sprinklerforum@lists.firesprinkler.org> > Cc: Mike Hairfield <fsl...@msn.com> > Subject: Hangers for CPVC Pipe going through TGI Joists > > The TGI Joists are spaced 16" apart, does NFPA-13 require hangers on > the CPVC pipe since the TGI joists are supporting the pipe? > > Mike > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > https://urldefense.com/v3/__http://lists.firesprinkler.org/listinfo.cg > i/sprinklerforum-firesprinkler.org__;!!JNMHBvMFenyP!r0lA2KfiF3-ChhPREG > ouvObNEi9-8l-eETMEIDdoGQV_dVQL4dNSjBOk4UxjiENSGZAlog$ > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > https://urldefense.com/v3/__http://lists.firesprinkler.org/listinfo.cg > i/sprinklerforum-firesprinkler.org__;!!JNMHBvMFenyP!r0lA2KfiF3-ChhPREG > ouvObNEi9-8l-eETMEIDdoGQV_dVQL4dNSjBOk4UxjiENSGZAlog$ > _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org https://urldefense.com/v3/__http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org__;!!JNMHBvMFenyP!r0lA2KfiF3-ChhPREGouvObNEi9-8l-eETMEIDdoGQV_dVQL4dNSjBOk4UxjiENSGZAlog$ ________________________________ Both the individual sending this e-mail and The Lubrizol Corporation intend that this electronic message be used exclusively by the individual or entity to which it is intended to be addressed. 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