Check the moisture level of the subflooring using a moisture meter.
Moisture barrier for concrete subfloor.
The presenter is using 6 mil thick poly barrier.
Usually buying the 2in1 is an easy and more economical option.
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.
For optimal moisture control you will want to overlap the poly barrier by at least six inches.
If you have a concrete floor that s in continuous contact with a source of moisture you re going to have problems.
This video describes the process of installing a moisture barrier over a concrete subfloor.
Vapor barriers come in two types 6 mil vapor barrier roll.
Compare the results against the manufacturer s specifications for moisture limits.
The concrete subfloor must be sufficiently strong to safely support the flooring furniture and people in the room.
This is why a vapor barrier under concrete is essential.
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.
If you have a plywood subfloor over a concrete slab check the moisture level of both floors.
You will lay the flooring lengthwise to this wall.
Determine your starting wall.
A 6 mil vapor barrier blocks all moisture from the subfloor from ever reaching your flooring.
The reason is quite simple.
How to install vapor barrier on concrete floor under laminate flooring.