I have this new piping that's being used now, it's made out of this material that I can't remember what it's called some of you may know what I'm talking about. We had a pipe leaking under the house a few years ago and instead of busting up the floor and fixing the leak the plumber suggested replacing it with this new piping they're putting in all the new homes now that they run up through the attic that doesn't freeze and burst, it expands a little but that's all! I wish I could remember what that's called if somebody knows please post. I still drip the faucets when it gets below freezing to keep the pipes in the walls from freezing! It drives the water bill through the roof but it's lot cheaper than fixing a burst pipe! The new pipes they ran through the attic held up quite well in the -2 temperature, a lot of other people didn't fare nearly as well, burst pipes all over the state pretty much or at least this part of the state anyway!