Ok, here's another good one. I'm running CAT6a down, inside a wall to a wall jack. The ceilings are 12'. 8' up or 4' down, there is a fire block. How would you propose to install the fire caulk without having to cut into the drywall or go about this in a different manner? Normally, if touch up paint and everything wasn't a problem, I'd suck it up but, I've got 8 of these to do. For now the only options I could think of is to come out of the wall at the fire block and run wire mold externally from there. Plan B is to drill a hole through the top plates from the attic and through the fire block and then install pvc or metal fence post into the hole extending beyond the fire block and all the way up into the attic, where fire caulk will fill the top of the pipe. The pipe O.D. and the hole I.D. will be snug enough so as to not allow air flow around the pipe.