Mix up some thinset and apply it to the bottom of the concrete board.
Tiling on chipboard wall.
You will be able to see the lines through the mastic.
If existing tiles are beyond repair remove the tile and install a piece of wallboard in its place.
The preferred method for tile installations is to use a sheet of underlayment.
Water damages chipboard once chipboard gets wet it swells and falls apart which will lift your tiles.
Tips for tiling a wall 1.
Hang a batten board to prevent tile slippage a batten board helps you start your bottom most course or row of tiles.
Strengthening the substrate will decrease the amount of movement associated with timber and non tongue and groove floorboards and chipboard.
Use our guide on strengthening a wooden floor for tiling to do this.
It was a casing in the kitchen that i made to house all the pipework and venting to my boiler.
Team of 99 aug 8 2010.
Wash the wall with tsp tri sodium phosphate or an ammonia based cleaner to remove any grease or oil.
For shower walls and tub surrounds install wonderboard lite 1 4 backerboard.
This will help adhere it to the chipboard and keep it from moving.
If possible you should always use concrete board underlayments rather than plywood.
Step 3 spread no sag mastic adhesive along the bottom of the wall with your notched adhesive trowel covering everything from the floor up past the horizontal line.
If you install tile directly onto the chipboard it will eventually crack and break.
Draw a vertical line up the middle of the wall from floor to ceiling intersecting the horizontal line.
There s nothing at all you can do about chipboards hatred of water for this reason don t use chip in a wet room or any constantly wet area.
Repair any loose or cracked tiles.
The wall surface should be installed or corrected so that there are no deviations greater than in 10 feet.
I hve tiled on chipboard in my own home.
Remove the tile and prepare the wall according to the corresponding instructions above or tile over the existing tile.
You can do this either by covering with a 10mm layer of weberfloor flex 6mm tile backer board or 15mm plywood.
Used a waterproof adhesive tiled it and never had a problem with it in over ten years.
If tiling on existing walls apply and smooth general patch to bring the surface into flatness compliance prior to tiling.
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.