Expert: jonewall - 7/13/2010

Question
Hi, I would like to know the best and cheapest way to level a floor which I want to tile. The floor slopes from 1 brick level at the top 2 corners, (before the wall proper starts) to 1 1/2 bricks at one opposite corner and 2 bricks level at the last corner. Can I mix a concrete slurry which will self level? I have 450x450 floor tiles to lay on this floor. Thanks Margaret

Answer
margaret

the floor pitches from 1.5" to 2.5" from the high point ?  is that correct ?
it is important to determine what caused the floor to settle
the irregular settlement may be caused by a settlement due to a failure of the fill under the floor.  if the ground is the problem, a solution to correcting that problem should take precedence before adding a leveling materials.

another consideration is where the slab is located .  below grade or above grade ?

need to determine if settlement will not continue

if the area of settlement is in a area  of plumbing  it sometimes indicate a leak in the underground piping ?

now ,as to the question as best i can without seeing the site. remember, a picture is worth more than a thousand words.

on a concrete floor a leveling material can be used successfully. keeping in mind that if the sub base is not stable the end product may not be the solution

to your success

je