hunter rick
Member
I recently was failed for fishing mc cable down inside a 1 hour fire rated wall in which I installed a metal cutin box, I fire caulked around my box and mc entry into the fire rock. The inspector said this was an NEC code vialation that I could not use the fire rock as support of the box it had to be fasten to the metal studs. This would constitute removing sections of fire rock to install supports for the boxes im having trouble finding this in the code and could use a little help !