hack of all trades
I'm working on a remodel of a 3 bedroom apartment unit a Chicago brick/limestone building built in the late 1800's. I noticed that some of the smaller original electrical, gas, and plumbing lines were run through a space above the floor joists but below the finished floor; basically slightly notched into tops of joists and sitting in gaps between the 1" subfloor planks. I need to run an electrical line through the bathroom to feed a circuit and I'm thinking about using that original channel. It would just be one run of 1/2" emt for 10'. My other options aren't really ideal. What do you think?