If you have old vinyl or any other flooring over uneven concrete demo and remove all debris.
Concrete uneven under wood floor.
This is a situation you might encounter in some older homes.
First measure the difference between the high and low points of the floor.
Uneven floors are rarely caused by problems with the floor itself.
Mold and or rot in your crawl space.
Remove carpet rugs padding and padding strips.
All you need is complete access to your concrete floor area.
This compound can potentially be utilized on a concrete slab or a wood subfloor and it works well when you are dealing with dips in the floor.
For a solid wood subfloor.
Tiny dips or ridges in the concrete won t affect your hardwood floor installation but large ones can lead to floor squeaks later as the connection between the floor boards is stressed.
The cause is usually settling or shifting of the foundation underneath the floors.
Self leveling compound is similar to concrete typically coming in large bags in powder form.
When you are dealing with uneven floors one option that you have is to use self leveling compound.
Use your judgment to see what will be in the way and remove those.
Concrete blocks or heavy items leveling an uneven subfloor leads to an even wood floor.
Remove all debris dust and loose particles off the floor.
But if you cover the uneven subfloor with self leveling compound before installing your wood flooring your new floor will be even and level.