How To Install Vapour Barrier On Concrete Floor

While plain plastic sheeting is commonly used to make vapor barriers these traditional poly barriers will allow water and vapor to pass.

How to install vapour barrier on concrete floor.

The presenter is using 6 mil thick poly barrier. In this guide we look at how vapour barriers work why you need them and how to install them. A vapor barrier can also increase your home s energy efficiency. A vapour control layer or vcl for short is a plastic layer that restricts the movement of warm moist air from inside a property into the fabric of the building.

Below grade walls and floor slabs transmit ground moisture through concrete walls or slabs. A vapor barrier against the concrete surface is generally recommended before wood framing or flooring materials are installed. Using a utility knife cut the length long enough to wrap edges up the wall 3 4 inches. Before rolling out the underlayment be sure to sweep vacuum and remove all debris on the substructure.

What is a vapour control layer how do they work. The barrier comes in rolls about twenty four inches wide. Step 1 picking a vapor barrier. Always read the flooring manufacturers recommendations and instructions before installing the underlayment.

Tips for concrete floor vapor barrier installation. Wrap vapor barrier up edge of wall 3 4 inches and tape to wall. With a little effort you can install this helpful device yourself. Crawl spaces benefit from a polyethylene moisture barrier placed directly over the exposed earth.

Where plastic sheets must be joined overlap the sheets by several inches and use strong vinyl tape to secure them. For more information about this video or fausfloor products visit www fa. If your concrete passes the moisture test then plastic sheeting at least 6 mils thick will prevent moisture from getting into your laminate flooring. This video demonstrates how to install a moisture barrier over a concrete subfloor.

Unroll 1st piece of vapor barrier along one edge of floor. May be higher check job specifications or building codes. This video describes the process of installing a moisture barrier over a concrete subfloor. When rolling out the moisture barrier you want to go from wall to wall and cover the entire floor.