Apply floor leveling compound primer.
How to level out a hardwood floor.
The process of fixing both an out of level and an out of plane floor is simply known as leveling a floor.
On the top side of the floor another fix it idea to lay down new hardwood over the existing floor.
To see if your floor is out of level all you have to do is measure between the level laser line and the floor at various locations along the room s perimeter.
The seal and caulk will prevent the leveling compound from spilling out past doorways air conditioning ducts or leaking through the floor once it is poured.
If the floor is uneven lift up the board until it is level so you ll know how much flooring compound you ll need to even it out.
Entire floor slopes from end to end if your room is out of level from end to end this means that your problem resides below and cannot be fixed with leveling compound or underlayment.
If the area is very large use a long straight 2 in 4 in 5 1 cm 10 2 cm board and set your level on top of it.
A plywood subfloor will bridge any minor waves in the existing floor and leveling compound would help too.
For instance solid hardwood flooring is typically nailed down during installation while tongue and groove engineered flooring is usually clicked together or completely glued down.
Floors are rarely perfectly level.
You will have to make sure your joists can handle the addition of considerably more weight from the plywood subfloor and any floor coverings.