The house we purchased is a "tear-down". A builder bought the older structure, partially tore it down and built a bigger house on the old footprint. A lot of the original gas piping is still in the basement. However, for all of the new runs, they used that yellow flexible gas piping. This includes the main run up to the furnace in the attic, as the house is 2-zone heat & ac.
Articles like this one get me a bit concerned. In your experience, how safe & resilient is flexible gas tubing? What if anything do I need to be concerned about? How do I protect myself and family if the integrity of any of this gas tubing were to be compromised?