The need for materials that don t trap moisture is true for many houses.
Does your floor need to be able to breathe.
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 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.
When it comes to insulating homes sealing them and providing proper ventilation a number of myths and old wives tales persist.
I just wanted to add one more vinyl floor variant that you should consider for a basement installation if you are already considering a click lock floor.
Breathe easier about your flooring.
You say so your self in your foil faced polyisocyanurate example.
Nor will putting a rug over your floor.
A flooring professional should be able to help do the research.
Most walls do need to breath from one side to allow any moisture from dew point condensate to dissipate.
Choose products with little or no formaldehyde.
Unless you re in a one way climate like minneapolis or miami putting plastic in your walls will trap moisture and grow things.
2 walls have to breathe.
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.
I highly recommend loose lay vinyl tile.