'Rnc"? Are you talking about pvc, ent.?Ridgid non-metallic conduit should be exceptable,Electrical non-metallic conduit would not if the ambiant temp. in the attic is 122 F. or more.Nor would it be exceptable around here if it is more than 3 stories.How about good old fasion emt? I know it can be a pain, but when in doubt... SCjohn
