The A&E's project spec I have prohibits copper fittings for sprinkler piping. Yet that was what was used. The contractor cited compliance w/ NFPA 13. Can anyone cite chapter & verse of NFPA 13 where copper fittings are permitted? Please exclude underground piping. I know its permitted for underground conditions. My request is for overhead clg conditions.
Thanks,
JKSJIM
Refer to Section 7.4 in the current edition of NFPA 13. Specifically Table 7.4.1. Of course, if your jurisdiction uses an earlier edition, you will need to find the corresponding section in that edition.