Compare the results against the manufacturer s specifications for moisture limits.
Moisture barrier for concrete subfloor.
Snap the chalk line over the top of the concrete or moisture barrier between the marks on opposite walls making a cross in the center of the room.
Usually buying the 2in1 is an easy and more economical option.
Vapor barriers are a way to keep moisture from getting into the concrete.
This video describes the process of installing a moisture barrier over a concrete subfloor.
The presenter is using 6 mil thick poly barrier.
How to install vapor barrier on concrete floor under laminate flooring.
You will lay the flooring lengthwise to this wall.
If you have a concrete floor that s in continuous contact with a source of moisture you re going to have problems.
Vapor barriers come in two types 6 mil vapor barrier roll.
Check the moisture level of the subflooring using a moisture meter.
This is why a vapor barrier under concrete is essential.
With your concrete subfloor you will need either a standard foam underlayment with a moisture barrier film or a 2in1 underlayment with moisture barrier already installed.
A vapor barrier is not the same as an underlayment.
When rolling out the moisture barrier you want to go from wall to wall and cover the entire floor.
The barrier comes in rolls about twenty four inches wide.
Determine your starting wall.
If you have a plywood subfloor over a concrete slab check the moisture level of both floors.
For optimal moisture control you will want to overlap the poly barrier by at least six inches.