Before rolling out the underlayment be sure to sweep vacuum and remove all debris on the substructure.
Installing a vapor barrier on concrete floor.
This video demonstrates how to install a moisture barrier over a concrete subfloor.
Here are some of the company s and their products.
Americover has a high performance 15 mil vapor barrier for installation under concrete floors and slabs that will retard moisture migration and radon from escaping through the surface of the concrete floor.
Where plastic sheets must be joined overlap the sheets by several inches and use strong vinyl tape to secure them.
It helps reduce mold and condensation in buildings.
2in1 vapor barrier underlayment is a combination of the standard underlayment sealed with a moisture barrier attached on the bottom the moisture barrier prevents moisture from getting into the flooring and potentially causing major damage.
Very hot and humid climates may benefit from an exterior vapor barrier that keeps outside humidity from penetrating into walls.
If your concrete passes the moisture test then plastic sheeting at least 6 mils thick will prevent moisture from getting into your laminate flooring.
Thanks all for the replies.
Install a plastic vapor barrier.
Below grade walls and floor slabs transmit ground moisture through concrete walls or slabs.
Install the hardwood flooring according to the manufacturer s instructions.
A vapor barrier can also increase your home s energy efficiency.
For more information about this video or fausfloor products visit www fa.
Always read the flooring manufacturers recommendations and instructions before installing the underlayment.
A vapor barrier against the concrete surface is generally recommended before wood framing or flooring materials are installed.
Fold the barrier downward toward the floor as needed and use baseboards to conceal it around the perimeter of the room.
Astm e 1643 standard practice for installation of vapor retarders used in contact with earth or granular fill under concrete slabs provides details but here are a few tips.
To be effective a vapor barrier must be installed in a way that prevents any water vapor from getting to the slab.
15 mil vapor barrier by americover.
After working the flooring mfr and your great feedback i have heavily recommended to our client to have the water issue mitigated and that installing a vapor barrier under the flooring material is in consequential and may exasperate the build up of moisture under the sub floor.
How to install vapor barrier on concrete floor under laminate flooring.
Step 1 picking a vapor barrier.
With a little effort you can install this helpful device yourself.