Install a damp proof course.
Wall under tile is wet.
The ultimate goal of preparing a wall for tile is to create a flat dry solid structurally sound surface firmly attached to the wall studs with no flexibility or movement that could damage installed tile and grout.
For wet areas such as shower walls you must take certain precautions.
Even the slightest amount of movement in a building structure can telegraph to the tile and crack it.
This job is best left to the.
Learn how to prep a shower wall for tile.
Jun 4 2012 1 hi there we ve had a damp problem in our bathroom which has manifested with discoloured patches on the walls in the room directly below the bathroom.
In addition because showers and bathtubs are wet areas they need a substrate that will not be damaged by moisture just in case a crack in the tile or grout lets water through.
The first step to repair shower tile after a leak is to assess the damage to determine how much of the wall has gotten wet.
Ceramic and porcelain tile more than almost any other surface material needs a stable flat flex free substrate.
Leaks typically start along the bottom of the wall where the tile meets the top of the tub or shower pan.
I prefer tiles though.
Wet walls will be cheaper to install easier to clean and easier to replace if you change your mind.