Plastic on the outer surface of a wall in cold weather could cause problems.
Plastic vapor barrier basement walls.
If you have a framed wall that is adjacent to a concrete foundation wall where the vapor barrier is next to the drywall in front of the studs the fiberglass insulation gets wet and becomes a breeding ground for mold.
The cool surface is the sheathing assuming no exterior insulation.
1 on the interior wall between the heated and unheated portion of the basement i would not use with a vapor barrier.
If water vapor diffuses or infiltrates into the wall cavity and finds the cool surface moisture problems can occur.
The material is stapled to the frame of a basement wall before it is finished with plaster or drywall.
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The construction of the wall for instance is vital to the use of a vapor barrier.
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.
The main concerns are condensation and drying potential.
Basement remodeling ideas from tv.
The humid air is indoors.
When the mold grows it will spread to everything around it studs drywall etc.
In exterior walls that are below grade like basement walls.
Polyurethane sheeting is a typical vapor barrier that contractors use to prevent moisture from penetrating the walls of a basement.
A vapor barrier is also helpful to keeping a basement insulated and warm.