I am laying ceramic tile over subflooring using 1/4 inch wonderboard. I am trying to not to have to move or modify existing floorboard trim. If I have 1/4 inch thick tile, 1/4 inch thick wonderboard how much thickness should I assume for adhesive? I have an existing 11/16 gap between subfloor and bottom of floorboard trim. Will I be able to use adhesive to close the gap to make fill the gap or are there other options?
Although I don't think things will work out like you planned, you could use 1/2 inch wonderboard instead of 1/4 inch. That should help. The thin set that is used to adhere the tile won't fill any gaps. It is a thin layer.
Not a good idea to try and use the adhesive in that manner to close up that gap.. The adhesive will be approximately an 1/8 th inch.. You ll find no floor is perfectly flat and no base board it truly straight. You asked for other options and the 2 best are to either use a shoe or trim molding after the tile is installed or to take off the base and re use it after the tile is on.. Any questions you can e mail me through my avatar and check my qualifications there.. GL
You have to use thinset mortar not adhesive.
