Safety is the critical factor here. It’s vitally important CSST, like other potentially conductive systems — including rigid black pipe — be properly bonded to the structure’s grounding network.
Today we have two dominant model plumbing codes in the United States; the International Plumbing Code (IPC) the Uniform Plumbing Code (UPC). The International Plumbing Code (IPC) is a proven, comprehensive model plumbing code that works seamlessly with ICC’s family of building codes. It
Bottom Line! I have a run of PEX in my attic that freezes when the outdoor temps falls to about 15 degrees. Once my attic warms up (after a few hours the next day) the pipe thaw. So far no leaks.
During maintenance you’ll want to be assured the top of the vent is kept open. A blocked vent can be caused by leaves, dead animals and ice dams (in very cold climates). Another “not-so-common” way
Now that we are slowly getting into the heating season, you (and your family and friends) will be using natural and propane gas appliances more often. If you should smell gas, here’s a handy (and safe) method of locating the fittings or joints that might be the problem.