Originally Posted by
THEOLDMAN
You can but it is not recommended. It all depends on the substructure anyway. You need to get a good bond between the substrate and the tile or else the tile will pop up and moisture will get in between the tile and substrate. A couple of areas that are particularly susesptible to this is near the sink and over the dishwasher. There are a bunch of different bonding agents that go on like paint at tile stores. Talk to someone working there and tell them what you are doing they should be able to point you in the right direction. Replacing the plywood with cement backer board or other products meant to be used as tilebacker would be the best solution.
no. you dont need a bonding agent. Its not going to mold through mastic or pop.
Dont nail directly over the existing laminate, becuase without thinset, it will creak even tho you nailed it because thinset will not bond to laminate.
Easy way:
Peel off laminate
Use laticrete or Custom brand fortified thinset, apply directly on to wood (thinset is water proof)
let dry
grout
realize you should have hired a tile setter when the edges look like shit cuz your cheap ass didnt buy bullnose and/or put it on wrong
Right way:
same as above but thinset the wood, nail 1/4" fiber rock (NOT CONCRETE BOARD) then set on that.
I'm a tilesetter.