Leave some of the old drywall exposed where it will meet the new backerboard.
Bathroom tiles falling off the wall.
To remove tiles that won t budge reach into the wall and use a utility knife to score the drywall from behind.
How to repair a broken or missing bathroom tile step 1.
The adhesive had not dried other than in the spacer lines and although the impression of the tile back pattern showed beautifully on the adhesive none was stuck to the tiles which fell off.
Once the mastic is off the wall it s time to use a straightedge to determine if the wall surface is perfectly flat.
If you soak the tile in water the mastic will almost always soften.
Your job now is to remove any organic mastic that is stuck to the tile backing.
Thinset is just silica sand and portland cement.
How do you fix it.
I m glad you re able to salvage the tile.
Stick the suction cup with the silicone to the tile as usual.
Drop those pieces into a bucket of hot water to separate the gypsum backing from the tiles.
Take the suction cup and pour a thin layer of silicone starting from the inside into a spiral shape but be sure to.
This is not just a threat for your tiles but also for your health.
Let the surfaces air dry or use a cloth that doesn t leave any fibers.
If there are low spots and humps you need to skim coat the wall with cement based thinset to get the wall surface flat and in the same plane.
Then pull the tile and small squares of drywall out together.
Install the new tile of course you must select the right tile for the job to begin with.
This guide will tell you the common faults and problems that can lead to tiles falling off a shower wall.
Things needed utility knife chisel hammer thinset small trowel wet rags grout float wet sponge.
The most common cause for falling tiles is water infiltrations.
When i pulled my tile off the wall you could clearly see bare spots on the tile where no adhesive even touched the tile.
If water gets behind the tiles and in the grout mildew can grow and it will cause the adhesive to deteriorate.
Remove the tile if your bathroom tile hasn t already fallen away entirely but merely broken you will need to.
Clean the suction cup and the tile thoroughly.