22mm gap to fill.

[Sean Kelly]

I started some repair work on New Years Eve. Water had been getting behind some tiles and the tiles were coming away from the wall. I removed 3 tiles 600x300. The fourth tile could not be removed because it would have definitely broken in half. The tiles are about 5 years old and the customer has no spares. The layer of plaster behind the tiles was absolutely soaked and came away quite easily. The second layer of plaster had blown and came away too. I am now down to the brick wall. The gap between the brick and the back of the tile is 22mm. Could I just use rapidset to build up/pack out the gap. The previous tiler did not silicone the internal corner, the grout cracked and the spray from the shower poured into crack between the tiles. I had hoped for 2 visits to mend this problem. It now looks like I’ll be making 3 trips! Cheers Sean

 

[Diamond Pool Finishers]

yes i'd use rapid mate to!!!

 

[jay]

is the rapid set your using waterproof (suitable for outdoor use):8:
the wall looks like it has been patched before with something

 

[Sean Kelly]

is the rapid set your using waterproof (suitable for outdoor use):8:

Good point Jay. I was thinking of Toppfix Rapidset Flex. I'm currently waiting for the wall to dry out, and can't get back until next Friday. Cheers Sean

 

[jay]

id remove all traces of old filler then build out with something that is suitable and can handle water (render s/c) then replace tiles as there seems to be no w/p make sure what you use is suitable for outdoor aplications if you know what i mean:8:

 

[faithhealer]

I've had a few jobs that look like that Sean lol

 

[diamondtiling]

I would remove all the plaster and fit a piece of 10mm marmox/wedi board to the wall, silicone all around it to seal from water and then fit the new tiles, this will be a much better surface for the tile than packing it out with adhesive, reseal the bath and internal corners with new silicone.

 

[Sean Kelly]

I would remove all the plaster and fit a piece of 10mm marmox/wedi board to the wall, silicone all around it to seal from water and then fit the new tiles, this will be a much better surface for the tile than packing it out with adhesive, reseal the bath and internal corners with new silicone.

Well thought out Diamondtiling. Quicker drying time too. Thanks. Sean

 

[White Room]

You may have problems later with the old plaster breaking down because of water ingress which may have traveled further back that it looks

 

[Colour Republic]

You may have problems later with the old plaster breaking down because of water ingress which may have traveled further back that it looks

Yeah that's what I was about to say.

If the plaster came away so easily then I would hazard a guess some more is blown. Does any of it sound hollow? They look like fair sized tiles so wouldn't want them coming down on you whilst relaxing in the bath. I know you won't want to take more down and I could understand the customer not wanting to redo the whole job with another tile but is it safe?

 

[merlecollins]

Strip all the loose back to the blockwork and fill in with Keraflex maxi which will fill in the shallow areas more effectively than sand and cement, but also go right up to your 22mm thickness with no problems.

Let that dry and fix with your rapid set

 

[Sean Kelly]

Yeah that's what I was about to say.

If the plaster came away so easily then I would hazard a guess some more is blown. Does any of it sound hollow? They look like fair sized tiles so wouldn't want them coming down on you whilst relaxing in the bath. I know you won't want to take more down and I could understand the customer not wanting to redo the whole job with another tile but is it safe?

I’ve scraped away all the loose bits and the hollow bits. All that is left is rock solid. However, these tiles are big 600x300. The tile to the right of the picture does sound hollow, but I can’t move it because it is hollow on the left and solid on the right. I got my trowel behind it but I’m pretty sure it would snap in two if I applied any more pressure. I have to leave it there because there are no spares. I plan to drop some addy behind it to make it a bit more secure.