I noticed a different type of tubing from floor up to tub and further up to shower. I asked contractor why was this replaced. He responded with, "to avoid any freezing of pipes if furnace goes out."
Home is majority of copper tubing, 56 years old and no pipes have cracked that I am aware of. I was not asked nor told of this change.
Can you help me understand the strategy behind this change of copper to PEX?
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