Basement floor insulation

koffey wrote: ↑ dimple membrane and carpet if you want the bare minimum

djskynet wrote: ↑ Recently moved into a new house and noticed the basement floor tends to be quite cold since the beginning of the cold. While the thermostat on the main floor is set at 22.5, basement tends to be between 17 and 20 depending whether the heat is blowing or not, and floor is always cold Not sure what wall insulation is there, I don't think it is spray foam, but I don't think that redoing this insulation would change much as if insulation was poor, I assume temperature would go way below. As such, I was actually thinking of redoing floor insulation. Right now, only a plastic sheet is between the concrete and the hardwood flooring.

Would that help in getting 1 to 3C more in the room?

Any advice as to what materials I should be looking at?