It's actually a piece of MC cable that's run into a 3/4" emt penetrating the roof. Then above, a piece of 1/2" emt is taped into the 3/4".
So, the tie-wire is securing larger conduit, and the tape is securing everything else? It's even worse than I thought!
[This message has been edited by BigJohn (edited 03-23-2004).]