Clearance between roof decking and electrical conduit
Clearance between roof decking and electrical conduit
(OP)
Does the NEC specify a clearance between the bottom of roof decking and electrical conduit? We are replacing part of the plant roof and some of the 277 lighting conduit runs along the bottom of the roof decking. I am worried about a roofer running a screw into the conduit as they secure the insulation. Any suggestions, Thanks.





RE: Clearance between roof decking and electrical conduit
Ram K. Kondapi
rkkondapi@crumetals.com
RE: Clearance between roof decking and electrical conduit
Cables and raceways parallel to framing members., it says that you must maintain a 1 1/4" clearance form the nearest edge of the framing member ( or deck ) in your instance.
if you are less thaan that a 1/16" steel plate may be installed to prevent puncture if not in conduit.