Determine your starting wall.
Moisture barrier for concrete subfloor.
Usually buying the 2in1 is an easy and more economical option.
Compare the results against the manufacturer s specifications for moisture limits.
Check the moisture level of the subflooring using a moisture meter.
You will lay the flooring lengthwise to this wall.
This video describes the process of installing a moisture barrier over a concrete subfloor.
The presenter is using 6 mil thick poly barrier.
The concrete subfloor must be sufficiently strong to safely support the flooring furniture and people in the room.
Vapor barriers are a way to keep moisture from getting into the concrete.
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.
The barrier comes in rolls about twenty four inches wide.
This is why a vapor barrier under concrete is essential.
Vapor barriers come in two types 6 mil vapor barrier roll.
If you have a plywood subfloor over a concrete slab check the moisture level of both floors.
The reason is quite simple.
A vapor barrier is not the same as an underlayment.
A 6 mil vapor barrier blocks all moisture from the subfloor from ever reaching your flooring.
How to install vapor barrier on concrete floor under laminate flooring.
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.