But Is it being "hung"? 13 speaks to hangers and attachments. Can the truss be considered a hanger? The only mention I see is 9.1.1.5.3 which references "holes" in structural members. So do you need to provide some sort of attachment on the top of the bottom chord? The use of hole implies radial protection/support. The CPVC strap is attached to both the pipe AND the structure, so a listing question could fairly arise. As for the listing for CPVC only, of course that is for weight consideration and for the no chafing bevels on the edges. I would be very concerned if there is no restraint (for sprinkler activation not seismic) on the system.
R/ Matt Matthew J. Willis Living Water Fire Protection, LLC. 1160 McKenzie Rd. PO Box 877 Cantonment, FL. 32533 850-937-1850 Voice 850-937-1852 Facsimile [EMAIL PROTECTED] ----- >On 7/31/07, Travis Mack <[EMAIL PROTECTED]> wrote: ----- >> In a 13R application, the sprinkler contractor ----- >installed the sch 40 ----- >> steel piping so it is laying on the bottom chord of ----- >the trusses. He ----- >> then installed 2 hole straps (listed for CPVC only) in ----- >order to keep ----- >> the pipe from moving to aid installation. Do the ----- >straps have to be ----- >> listed for fire protection use? I was under the ----- >impression that since ----- >> the piping is laying on top of the bottom chord, it is ----- >not being ----- >> "hung." Therefore, the straps are merely for ----- >convenience. What do ----- >> y'all think? Bracing or restraint is not required by ----- >the AHJ in this area. ----- >> ----- >> Travis ----- >> ----- >> _______________________________________________ ----- >> Sprinklerforum mailing list ----- >> [email protected] ----- >> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum ----- >> ----- >> To Unsubscribe, send an email ----- >> to:[EMAIL PROTECTED] ----- >> (Put the word unsubscribe in the subject field) ----- >> ----- > ----- > ----- >-- ----- >Ron Greenman ----- >at home.... ----- >_______________________________________________ ----- >Sprinklerforum mailing list ----- >[email protected] ----- >http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum ----- > ----- >To Unsubscribe, send an email ----- >to:[EMAIL PROTECTED] ----- >(Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
