Many refinishers fit a.
How to flatten a floor.
If they consistently roll to the same side that side is lower than the rest of the floor.
When nailing down a wood floor the subfloor should be flat to within 1 4 in 10 or 3 16 in 6.
Start by using a circular saw to resaw any tight joints where the plywood or osb panels meet says boone.
Apply concrete leveler primer to the floor with a soft bristle push broom.
Drop a few marbles onto the floor in various areas around the room and then watch them roll.
From the front of the house to the doors the floor slopes up around 7cm but is not too uneven across the width so we re going to put down a thick underlay and carpet.
Cut slots in the concrete close together with an angle grinder and diamond blade knock off the little ridges you have just created and then either flatten with a cup grinder or level up with compound.
From the french doors it slopes up a further 3cm to the middle of that area and then is flat for the rest.
Installation of a wood floor over the subfloor insinuates acceptance by the flooring installer.
Make sure to smooth out any puddles of primer to end up with an even coat.
Spread it over the entire surface of the floor with the push broom and apply downward pressure to work it into the pores of the concrete.