How to fix cracking ceiling with radiant heating wires?
I have an older house (about 40 years old) and there are a few spots where there are cracks in the ceiling that I'd like to fix. The problem is that it's not just a regular drywall ceiling. There is a layer of drywall, then radiant heating wires imbedded in something really hard, it seems almost like concrete. In a couple places it seems like the concrete layer is separating from the drywall and dropping down slightly at the crack location. So somehow I need to raise the it back up before I patch it so it doesn't make a bump, but I don't want to start breaking the concrete layer up even more. Any suggestions?
By the way, the ceiling heat is no longer working in the room that needs the ceiling repairs so I don't need to worry about hitting the wires with drywall screws.