Some of you guys mentioned bushings or "other method to prevent chafing". Can we elaborate on that? I've seen bushings used where CPVC is run in a wall and passes through metal studs, but I don't think I've seem them installed in this scenario. Is that really a requirement?
-Kyle M -----Original Message----- From: Sprinklerforum <[email protected]> On Behalf Of Bob Knight via Sprinklerforum Sent: Wednesday, September 30, 2020 7:34 AM To: [email protected] Cc: Bob Knight <[email protected]> Subject: [EXTERNAL] RE: Hangers for CPVC Pipe going through TGI Joists Blazemaster has very specific criteria for this: "When the piping is supported by wood joists or trusses by laying the pipe directly on top of the structural members, the structure provides the support, assuming that the center spacing of the structural member does not exceed the requirements of Table Q." This would include when passing through holes in TJI type joist. Thank you, Bob Knight, CET III Fire by Knight, LLC 208-318-3057 -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mike Hairfield via Sprinklerforum Sent: Wednesday, September 30, 2020 6:39 AM To: Sprinkler Forum Cc: Mike Hairfield 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 [email protected] https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwICAg&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=SdpFbtMK1-jneilmi9UX9Wb03ucgatk8Er3sXcgCh6E&s=XYdJw3dIVQhLU9W8Ze4bpJwVi6BXWr9cAP4hS626p50&e= _______________________________________________ Sprinklerforum mailing list [email protected] https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwICAg&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=SdpFbtMK1-jneilmi9UX9Wb03ucgatk8Er3sXcgCh6E&s=XYdJw3dIVQhLU9W8Ze4bpJwVi6BXWr9cAP4hS626p50&e= _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
