Install ceramic tile over a subfloor that s no less than 1 1 8 inches thick.
How to install ceramic tile on plywood wall.
A rented ceramic tile cutter is the easiest way to make your straight cuts.
For ceramic tile floors the cement board usually rests on a plywood subfloor minimum 5 8 inch thick exterior grade plywood or osb if new ceramic tile is being laid on an existing floor the cement board can usually be laid right over the existing floor finish provided it is in good shape and the extra floor thickness is not a problem.
A poor ceramic installation will delaminate from the subfloor split at the grout lines or worse crack directly across the tile.
A thinner subfloor will cause the floor to flex due to the weight of the tile.
Wash the wall with tsp tri.
To be sure maybe drill up to 6 evenly spread out holes in the plywood at least 4mm deep or straight through in the areas to be tiled so the adhesive sinks into the holes and hardens hence creating a stronger fix.
The safest most prudent course is to install tile on top of a cement backerboard such as durock wonderboard or hardiebacker.
Plywood substrate alternatives.
Smooth the edge with 80 grit sandpaper the edge of a cut ceramic tile is very sharp.
At the end of a row or around fixtures you ll probably need to cut some tiles.
Remove the tile and prepare the wall according to the corresponding instructions above or tile over the existing tile.
Backerboard does not shrink or expand when it comes into contact with water mortar and grout both contain water.
If possible you should always use concrete board underlayments rather than plywood.
Next mix your grout and spread it into the gaps between the tiles using.
Use long sweeping motions to apply mortar to the wall and start placing your tiles in the marked locations.
One question that folks new to ceramic tile frequently ask is whether they can lay the ceramic directly on top of a plywood or osb subfloor using a thinset cement or liquid nails to glue down the tile to the wood.
A flexing subfloor results in cracked tiles and grout and a lot of headaches.
To do so make sure all of the tiles are intact and secure.
For wall installations plywood is overkill beneath the concrete or fiber board which is designed in five eighths inch material for wall settings.
Cement backerboard is made for tiling.
Clean and heavily score area to where tiles are to be fixed it sounds like the adhesive does not have a rough surface in which to secure itself to.
Be sure to put spacers between each tile as you go.
If existing tiles are beyond repair remove the tile and install a piece of wallboard in its place.
Using this tool score the cut line on a full tile and then snap the tile along the scribed line.
