Vapor Barrier For Basement Concrete Walls

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.

Vapor barrier for basement concrete walls.

Also be sure to use treated lumber for the bottom plate on the wall framing. Most jurisdictions require a 4 mil plastic sheet vapor barrier for basement walls against concrete. The main concerns are condensation and drying potential. The other option is to set the 2 4 wall framing in 4 from the masonry or concrete basement walls and use just the vapor barrier on the insulation facing toward the living space.

Very hot and humid climates may benefit from an exterior vapor barrier that keeps outside humidity from penetrating into walls. Because of this you ve likely asked yourself. By the way you need a thermal insulation on top of that too. Not to be confused with a vapor barrier which is placed on the warm side of the wall just in front of the insulation and behind the drywall a moisture barrier goes against the basement wall.

That is if the studs are going to touch the concrete wall. Should i install a vapor barrier in my basement. A vapor barrier against the concrete surface is generally recommended before wood framing or flooring materials are installed. Making basements appropriate places to live is more complicated than you might assume.

Unlike cellars basements need to be dry comfortable environments that effectively keep out any possible contaminants. It s advised to run a vapor barrier just to make sure you don t get any moisture issues after finishing. When the mold grows it will spread to. 1 on the interior wall between the heated and unheated portion of the basement i would not use with a vapor barrier.

The builder insulated the upper 4ft of the basement wall with a pink batt style insulation which is held to the wall with a vapor barrier. The vapor barrier is sealed to the concrete wall at the bottom with some sort of seal and nailed directly to the concrete.