Home > categories > Construction & Real Estate > Cement Boards > Is slight dip in cement backer board okay?
Question:

Is slight dip in cement backer board okay?

When laying down cement backer board for a slate tile installation, I laid the board a bit too far from the wall, so I pushed it until it was flush with the wall. I think by doing this I must have shifted some of the thinset underneath, because I noticed that the board has a slight dip in it, of maybe 1/16-1/8. Is this going to be a problem, or will it be taken care of when I put thinset over it to lay the tile. This is obviously my first time laying tile.On a side note, when laying slate, is it best to use thinset or medium set, I've heard conflicting opinions.

Answer:

medium set is more forgiving.
May 11, 2017
If you use medium set, any differences in the scale you described can be corrected fairly nicely.
May 11, 2017

Share to: