Moisture Barrier For Basement Walls

Before framing the walls of your basement install a moisture barrier to prevent water and moisture from entering the wall cavity.

Moisture barrier for 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. So we thought it might be a good idea to clear up some of the confusion. A basement vapor or moisture barrier is installed during the new construction of a home or the remodeling of a basement. 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. Justdoityourself lovingit perfecteverytime s. Controlling moisture is the easiest way to eliminate mold in a basement. We ve written several articles about basement insulation and a cost effective approach to basement insulation using foam board and fiberglass insulation since writing those articles we ve received quite a few questions about when to use a basement vapor barrier and when not to.

Basement vapor barrier and insulation. 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. Whether or not you need a vapor retarder hinges on three main factors.

Here is a great system to do that. 1 on the interior wall between the heated and unheated portion of the basement i would not use with a vapor barrier. Polyurethane sheeting is a typical vapor barrier that contractors use to prevent moisture from penetrating the walls of a basement. The material is stapled to the frame of a basement wall before it is finished with plaster or.

After the insulation is in place you will want to add a vapor retarder sometimes called a vapor barrier if you need one. Not every wall does. A vapor retarder is a material used to prevent water vapor from diffusing into the wall ceiling or floor during the cold winter. Here are three different types explained.