Silicone internal corners... - TilersForums.com

[Rich]

I did a repair on a Huge house a few months ago because the tiler had not sealed properly around the shower tray, water had got behind the tiles and ruined the plasterboard. I got a call from the lady the other day asking if I could go round and take a look at the other shower room, the silicone had gone black and could I replace it. As I was only working round the corner I popped round yesterday. I wish I had taken my camera...
The tiles were hanging off the wall, huge cracks along the grouting, the internal corners had been grouted then siliconed, the silicone was totaly black, the shower screen hadnt been siliconed and there were several holes in the grout. The worst part was that she told me that he is a 'really good tiler' :yikes: :mad2:
I told her that I could only do a patch up job there and then but she was going to have problems down the line. Let this be a lesson to all, grout in internal corners will crack and come loose taking any silicone ontop of it with it.

 

[DHTiling]

I see quite a few bathrooms that have no expansion in the corners..

 

[faithhealer]

I missed out on a bathroom last year because I was too busy, and , same as you Richard got asked to go and look at another guys work. Huge cracks in the grout in the corners. Just backheeled it and told her to get the tiler back

 

[united]

I have always put in expansion joints, it's common sense IMO

 

[DHTiling]

I have always put in expansion joints, it's common sense IMO

Not to some i tell thee..:dunce:

 

[merlecollins]

I 'LOVE' siliconing:lol:

 

[Scott]

I 'LOVE' siliconing:lol:

Me too cos when you have the silicone out its almost time to go home!!!

 

[StanleyES]

From the post's i have read it seems the general consensus is to leave an expansion gap in internals, then silicone internals and allow to dry, then grout.
This made sense to me (although i'm only a DIY'er). I was about to start siliconing the internal corners of my shower yesterday and started wondering about the butt joint that will be formed between the grout and the silicone. Won't this be a weak joint and a likely source of water penetration?

 

[paulyoung666]

From the post's i have read it seems the general consensus is to leave an expansion gap in internals, then silicone internals and allow to dry, then grout.
This made sense to me (although i'm only a DIY'er). I was about to start siliconing the internal corners of my shower yesterday and started wondering about the butt joint that will be formed between the grout and the silicone. Won't this be a weak joint and a likely source of water penetration?

not sure i have read you right here , but , the silicone takes the place of the grout

 

[Scott]

If you apply a bead of silicone to the vertical joint before you grout the grout should be pushed in behind the silicone bead (after silicone is dry obviously)

I tend to grout first but leave the vertical join and silicone after its all dry