[throwaway292893]

Our homes are usually very well insulated to keep our cool air in, we also don't usually have multi-stories, just a long ranch home that's easier to cool.

What you saw mentioned during the freeze was the conflating of pipe insulation with wall insulation.

We usually don't insulate our pipes because we don't have freezes, this led to bursting of pipes, that was the main damage during the freeze.

There's flex piping that doesn't need insulation, but squirrels and such can chew through them and it's just expensive to re-pipe your home.

I'm sure everyone that had their pipes freeze most likely has flex piping now, at least partially.

[yostrovs]

There is no freeze proof piping, sadly. Up here in the northern states all the piping has to be protected and the stuff that's outside the walls needs heat tape.

[acranox]

Copper usually bursts if the water in it freezes. But PEX can freeze without bursting. It has just enough flex to handle the expansion of water into ice. It still might burst, but it’s much less likely than copper. At least that’s my understanding of it. It’s not freeze proof. But it is less prone to freeze damage.