Originally Posted by somewhereinusa
I have 2 inch with pex in it for heat. Some squaks when you walk on it, I think it's the pex. Nothing when driving.
Do you have expanded polystyrene (little white balls compressed together) or extruded polystyrene (often pink, more solid form)?
That’s a good point about the heated floors on the foam subfloor.
I what kind of hard surface did you put over the foam?