Moisture Barrier On Concrete Floor

If you have a concrete floor that s in continuous contact with a source of moisture you re going to have problems.

Moisture barrier on concrete floor.

A moisture barrier may or may not be needed to insure good adhesion of your vinyl floor so do your homework to avoid problems later on down the road. Below grade walls and floor slabs transmit ground moisture through concrete walls or slabs. Aci 302 2r 06 guide for concrete floors that receive moisture sensitive flooring materials states that a concrete slab on ground without a vapor retarder barrier directly beneath it may have a final relative humidity profile that does not benefit from any initial drying. Vapor barriers are a way to keep moisture from getting into the concrete.

Very hot and humid climates may benefit from an exterior vapor barrier that keeps outside humidity from penetrating into walls. If your floor covering is bonded to concrete using adhesives with water latex and acrylic bases excess moisture will emulsify and weaken the adhesive formula causing. Vapor barriers have been associated with certain concrete slab on grade problems including curling and cracking. Always read the flooring manufacturers recommendations and instructions before installing the underlayment.

A concrete floor with a too high moisture content can wreak havoc on a vinyl floor. A vapor barrier against the concrete surface is generally recommended before wood framing or flooring materials are installed. This is why a vapor barrier under concrete is essential. How to install vapor barrier on concrete floor under laminate flooring.

15 mil vapor barrier by americover. If your concrete floor is finished with vinyl paint wood vct or carpeting moisture and vapor mitigation is even more important. Concrete moisture damages floor coverings. A concrete floor seems like the perfect base for a vinyl floor installation.

But they have also proven to be beneficial in reducing failures of moisture sensitive flooring materials adhesives and coatings caused by excessive emission of moisture vapor from concrete slabs. A concrete vapor barrier is simply a sheet of polyethylene plastic visqueen placed directly on top of the sub grade before the concrete floor or slab is poured to help keep moisture from the soil from passing up through the concrete. Here are some of the company s and their products. A vapor barrier is not the same as an underlayment.