I bought a rehab project recently - built in the 60's, ranch style on a slab. The water pipes are in the attic wrapped in insulation with a heat tape around them. I do not like water pipes in unheated spaces as I am worried they will freeze. It would be a huge mess if one of them burst in the attic!!!. I was thinking that I could run the water pipe from the utiltiy room through the kitchen and dining room to the bathroom at the ceiling level hidden behind crown molding. At least they would be in the heated space of the house. Anyone have experience doing this? That is the only way to get the pipes to the bathroom area and not in the attic.