Vapor Barrier Framing A Basement Wall Against Concrete

So make sure the framed wall has a gap between it and the foundation wall.

Vapor barrier framing a basement wall against concrete.

This moisture will wick into any lumber that comes into contact with it. Most jurisdictions require a 4 mil plastic sheet vapor barrier for basement walls against concrete. Very hot and humid climates may benefit from an exterior vapor barrier that keeps outside humidity from penetrating into walls. Below grade walls and floor slabs transmit ground moisture through concrete walls or slabs.

Masonry walls like concrete tend to be damp dreary and unpleasant. These plates must be made of pressure. Or you can leave a 4 inch gap between the studs and concrete wall and probably get away with it. Moisture barrier between the sole plate the concrete slab.

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. 1 on the interior wall between the heated and unheated portion of the basement i would not use with a vapor barrier. Before framing the walls of your basement install a moisture barrier to prevent water and moisture from entering the wall cavity. The cool concrete wall causes the humid air in the basement to condense on the surface.

How to frame an inside wall against a concrete wall. 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. Concrete walls may have a purpose but beauty and warmth aren t it. That is if the studs are going to touch the concrete wall.

A vapor barrier against the concrete surface is generally recommended before wood framing or flooring materials are installed. Here are three different types explained. You also don t want the wall studs to come into contact with the foundation wall.