Wall preparation for tiling

[Troystar1]

So I've striped the paint of the wall ready for tiling, a thin layer of brown plasterboard has come of with the paint. House is 2006 looks like taped joints and painted. I still have a thin layer of brown paper on the plasterboard. Is this OK to tile straight on to? Thanks

 

[Troystar1]

Here is a picture of the wall on question

 

[Dave]

Here is a picture of the wall on question

It hasn’t affected the boards integrity by the looks of it , what tiles are you using ?

 

[Troystar1]

So I wet down the paint with a sponge.then scrapped the paint away,with the paint a thin layer of brown plaster board paper was attached. I'm using 3 small tilles to form a hexagon roughly 250mm x 250mm.... what process would u recommend? Please

 

[Dave]

Prime and tile with a cement based bagged adhesive.

 

[Troystar1]

Stripped paint/paper

Prime and tile with a cement based bagged adhesive.

any recommendations for a primer?
Thanks

 

[Trigger]

The paper on the face of plasterboard should be grey (or green), it looks like you have you have removed or damaged part of that top layer of paper so personally I would be reluctant to tile onto it. It might be ok but why risk it, a new sheet of board is only 9 quid.

 

[Troystar1]

The paper on the face of plasterboard should be grey (or green), it looks like you have you have removed or damaged part of that top layer of paper so personally I would be reluctant to tile onto it. It might be ok but why risk it, a new sheet of board is only 9 quid.

 

[Troystar1]

The plasterboard is dot and dabbed onto the block work, would it be best to remove board and dabs then dab a new board onto the block work?

 

[Trigger]

The plasterboard is dot and dabbed onto the block work, would it be best to remove board and dabs then dab a new board onto the block work?

2 options-

1) Remove plasterboard and replace like for like using dot and dab method. I would also put some mechanical fixings in aswell.

2) Glue a 6mm tiling board to the existing plasterboard and mechanically fix with screws and washers through the board into the blockwork. This option is more expensive but less hassle and creates less rubbish as you don't have to dispose of the old plasterboard.

 

[Dave]

If you were using big heavy tiles then yes replace the PB but for the small amount your installing and as long as the board is not weakened then it will be fine imo and doesn’t warrant the extra costs.

 

[Trigger]

The board has been compromised due to the paper face being torn off unfortunately. The paper serves a couple of purposes, it has thousands of microscopic pores in it to help plaster adhere to it but it also helps to control the suction/absortion of the water in the plaster or in this case the adhesive. If you attempted to plaster that the remaining brown paper would start to bubble up and delaminate from the core. I suspect it would do the same with the tile adhesive as a result of the water content of the adhesive as it will remain wet for a number of hours. I suppose priming them and then tanking might help, but why bother, just replace them.