The cool concrete wall causes the humid air in the basement to condense on the surface.
Vapor barrier framing a basement wall against concrete.
The main concerns are condensation and drying potential.
1 on the interior wall between the heated and unheated portion of the basement i would not use with a vapor barrier.
You also don t want the wall studs to come into contact with the foundation wall.
Or you can leave a 4 inch gap between the studs and concrete wall and probably get away with it.
That is if the studs are going to touch the concrete wall.
This moisture will wick into any lumber that comes into contact with it.
A vapor barrier against the concrete surface is generally recommended before wood framing or flooring materials are installed.
Very hot and humid climates may benefit from an exterior vapor barrier that keeps outside humidity from penetrating into walls.
Masonry walls like concrete tend to be damp dreary and unpleasant.
So make sure the framed wall has a gap between it and the foundation wall.
Also be sure to use treated lumber for the bottom plate on the wall framing.
In winter the dew point of the interior air is typically about 50 f assuming an air temperature of 70 f and a relative humidity of 50.
Below grade walls and floor slabs transmit ground moisture through concrete walls or slabs.
How to frame an inside wall against a concrete wall.
Most jurisdictions require a 4 mil plastic sheet vapor barrier for basement walls against concrete.
Moisture barrier between the sole plate the concrete slab.
Here are three different types explained.
Before framing the walls of your basement install a moisture barrier to prevent water and moisture from entering the wall cavity.
Concrete walls may have a purpose but beauty and warmth aren t it.