The backer provides a flat even surface that can be screwed into the wall and cover over any uneven problem areas.
How to tile an uneven concrete wall.
Use a flat scrap of wood to even and smoothen out the surface and let this dry for a few hours or overnight.
First chip the bumps cracks and dents on the concrete wall with a hammer.
Mix thin set mortar according to manufacturer s instructions.
The mortar is spread.
Apply just enough of the adhesive to attach a few tiles at a time so that the adhesive stays moist and ready to receive the tiles.
Spread thin set mortar on surface with a notch trowel held at a 45ยบ angle combing in one direction.
Set tile firmly into place while slightly moving the tile back and forth to help tile settle.
How to install tile mark the wall in the middle with a chalk line to create a guide for the tiles.
With a notched trowel apply the adhesive at the bottom of the cinder block wall.
Repeat the process for the rest of the installation and.
Back buttering is a trick used for tiles of uneven thickness like ungauged slate or handmade tiles extremely large tiles or for tiles being installed on an uneven surface.
The reason that would have been a better idea is that the middle row of tiles didn t match up with the rest of the rows.
Once the cement is dry apply the bonding agent that should give the surface a rough texture.
Then flush and fill the areas with cement.
Beginners guide to laying tiles on an uneven concrete floor.
At walls and floors we recommend hardiebacker boards as they are mould and moisture resistant easy to work with yet remain sturdy in their lifespan.
A concrete backer board can cover up an uneven wall with ease.