Regular wear and tear severe fluctuating weather conditions and improperly preparing the ground before a concrete pour can result in a sloping concrete slab.
Level a sloping concrete floor.
As the underlying ground settles further the concrete slab will slope or sink in a particular direction making one side higher than the other.
Slip shims under the low end of the 2x4 rail until it s perfectly level then use a scribing tool to transfer the unevenness of the floor onto the rail.
To resurface an uneven concrete slab begin by laying a long straight 2x4 wooden rail across the concrete slab floor with one end positioned on the high point in the room.
The best method for leveling a sloped patio or porch floor is to pour a layer of self leveling concrete on the surface of the existing concrete.
Leveling a concrete.
Slightly sloping floors which are common in older houses often worry homeowners who want to install new rigid floorings such as laminate ceramic tile or hardwood.