Fill cracks in concrete subfloor and make sure the filled areas are level before cleaning the subfloor.
How to float level a floor.
Use a sander to sand the high spots.
Raise the lower end of the level until the bubble is centered then measure the distance from the bottom of the level to the floor to find the depth of the dip.
Measure the drop lay a long level downhill on the floor with one end of the level on the level part of the floor and the other end at the lowest point.
I will stay within the lines that we drew on the floor in tips 1 and 2.
Use a metal putty knife or scraper to gently pry baseboards off the walls.
If the uneven floor is due to floor joists that have warped or twisted over time or were incorrectly installed the only way to level the floor is to remove the subflooring and shim the joists.
A thorough cleaning is also necessary to get the subflooring ready to accept the liquid bonding agent.
Keep checking the floor with a level as you sand it.
Your local home depot store may have rental tools available.
Take everything out of the room so that the floor is completely clear.
If you expect to create a lot of sawdust wear a dust mask and use painter s tape to tape plastic sheeting over doors and air vents so the dust won t spread.
You could mix smaller or larger batches.
Remove all of the furniture appliances and baseboards from the room.
If you have access to the basement or crawlspace it is possible to jack up saggy joists until they are level and then sister them so that they remain straight after the jacks are removed.
Compound can correct sags and dips as deep as 1 1 2 inches.
Once the thin set is mixed i then use my tile trowel the notched side to spread the thin set over the dip in the floor.
Hey guys this is adriano with imaginative tile and marble.
I will then pull my trowel across the floor trying to leave nice even tracks.