I recently had a Slab leak in my home in Indianapolis,IN. This is the 4th Slab leak since I've owned the home. I decided it was time to reroute all the Water lines. I thought this was best so I wouldn't have to deal with anymore slab issues. We had pex lines run through our attic space to the bathrooms and laundry area. Pex had to be ran under the concrete from the utility closet to the Kitchen. All the lines are tied to a Manifold. After reading some info on this site, I am alarmed that we may have frozen lines in the cold temp. The pex was run about 3 maybe 4 feet above the blown in insulation. The lines were fastened to the rafters. Black insulation was used to wrap the lines. I've been told that this is out of code in Indiana and that the lines need to be rerun inside the home. Just below celing. Then celing would have to be framed and new drywall attached. Help! Anyone that can provide any information about what we should do, would be appreciated.
The simple solution is to dig up the insulation, run the pipes along the top of the ceiling drywall (ie, just above the ceiling, rather than just below it), and put the insulation back on top of them, which puts them on the warm side of the insulation, "inside the home (thermally speaking)." Also to be a lot more careful when hiring "plumbers."
Otherwise, framing in a pipe chase below the ceiling would work, and might actually be easier in some cases (where crossing rather than running along ceiling joists.)