Nor will putting a rug over your floor.
Does your floor need to be able to breathe.
Unless you re in a one way climate like minneapolis or miami putting plastic in your walls will trap moisture and grow things.
A flooring professional should be able to help do the research.
The need for materials that don t trap moisture is true for many houses.
This low level of air leakage allows the home they say to be properly heated and cooled and to provide.
If the subfloor is new it may need longer especially.
I highly recommend loose lay vinyl tile.
You say so your self in your foil faced polyisocyanurate example.
2 walls have to breathe.
Breathe easier about your flooring.
The other answers hit the nail on the head wood floors in basements or anywhere subject to moisture is generally a bad idea.
Houses don t need to breathe but they do need to be able to dry out when they get wet.
Allow the subfloor to dry for at least 72 hours after you remove an old floor covering and before you bring the new flooring into the room.
Most walls do need to breath from one side to allow any moisture from dew point condensate to dissipate.
When it comes to insulating homes sealing them and providing proper ventilation a number of myths and old wives tales persist.
Most folks who say walls need to breath mean moisture needs to be able to dissipate sufficiently to avoid mold and rotting issues in the wall cavity.