Discuss Shower enclosure problems in the UK Tiling Forum area at TilersForums.com.

S

Sedated

Hi all

Late last year we had our en suite refurbished. As part of that we had a new shower enclosure fitted. The siliconing around the shower I did myself. I siliconed all the outside and also the inside uprights only, not the bottom of the frame inside.
The first time the shower was used water was leaking from the corners outside the enclosure through the tile grout and onto the floor. As I knew the Silicon I had done was sound I wondered if the fitter had siliconed inside the uprights before instillation? He assured me that he had and also said I should have siliconed 2 inches along the bottom corners of the shower frame, the bottom bit of the frame in the corners before it gets to the bottom runner bit. I said that you aren’t supposed to Silicon inside a frame (especially the bottom) as water should drain back into the shower.
Anyway we got the fitter out and he said he had sealed behind the uprights but I wasn’t convinced and asked him to take the shower down. Sure enough behind the uprights were not siliconed. After a full day getting the Silicon off the shower frame, tray and walls. I let the walls and floor dry out thoroughly for a week before attempting to Silicon behind the uprights prior to the frame going up.
I did notice that the tiles on the wall came down really tight onto the shower tray touching in places and there was not much room to get Silicon actually in the gap. I would have thought the expansion gap between the tiles and tray would have to be at least a couple of mills to make sure the Silicon gets well into the gap. Surely the thinner the gap the less the Silicon can stretch?. Anyhow I used a small nozzle and forced as much in the gaps behind where the uprights were going to fix, squeezing it in with the gun, pushing it in with my finger several times., and obviously overlapping onto the wall and tray.
I was still concerned about the stretchiness of such a small amount of Silicon in what could be a place where there potentially could be so much movement. I couldn’t over lap too much on the wall and tray as the frame had to go over that Silicon and I didn’t want it disturbed in the fitting process. The fitter returned and started to put up the frame, before he put up the uprights he did put a bit of Silicon on the bottom of the uprights before he fitted the frame to the wall. One the frame was up I then was left with the task of all the siliconing.
The shower was ok for a week but today the problem has returned. I spent ages making sure that the Silicon behind the uprights was done to the best of my capabilities. Is it possible that the Silicon behind the uprights could have failed as there wasn’t a big enough gap to seal properly in the first place? Now that the shower has been used and the tray flexing slightly and not enough Silicon to stretch with the movement? Or even the tray rubbing on the tiles and wearing through the small bit of Silicon. As I said the tiles were tight up to the tray. Or is the fitter right that I should have sealed the little bits inside along the bottom corners of the shower frame, the bottom bit of the frame in the corners before it gets to the bottom runner bit as shown in the picture.
But then again if its sealed behind the uprights then this shouldn’t matter.
Below is where the fitter suggested sealing
DSCF2316-1.jpg
 
Q

Qwerty

I never seal the inside of shower cubicles, only the outside. If it is leaking from anywhere, then I suggest it is creeping through the joint where the bottom (horizontal) frame meets the vertical (wall fixed) part of the frame. You can run a very thin bead across the join on the outside of the shower.

Were the shower walls tanked at all? It is possible that water is seeping through the grout and finding its way out at the lowest point. Any sign of leaks elsewhere? (in rooms behind or below shower?)

Oh, Welcome too! :welcome:
 
S

Sedated

Thanks for that.

The shower was already built up when bought (Bathstore) it was just a matter of attaching U shaped channeling on the wall, offering the frame over it and screwing to.

The area you mention seems dry and so does all outside siliconing (passed the Tissue test)

The grout does look sound as does all the siliconing where the tiles meet the tray.

No the walls wernt tanked and frankly I was unsure of the fitters methods of tiling. The tiles were 60x 30 tiles and he wasnt putting adhesive on the wall but buttering them. I recon that can cause more chance of water getting behind them.
 
S

Sedated

Oops sorry posted same again
No Mike the bottom left red arrow is dry Silicon but underneath that right at the bottom, where to tiles join the tray from the floor could be wet underneath It does look darker. the wet is not on the tiles on the wall only creeping up the grout.
Siliconing21.jpg

2After.jpg
 
Last edited by a moderator:
M

Mike

well it looks like the water is getting in between the tray and bottom row of tiles and coming out where it's wet. was the tray siliconed before tiling? you may have to remove the shower cubicle again and remove the bottom row of tiles. let it dry out and repair if necessary then silicon the tray in then retile leaving a 2mm gap in the bottom for silicon to adhere to
 
S

Sedated

well it looks like the water is getting in between the tray and bottom row of tiles and coming out where it's wet. was the tray siliconed before tiling? you may have to remove the shower cubicle again and remove the bottom row of tiles. let it dry out and repair if necessary then silicon the tray in then retile leaving a 2mm gap in the bottom for silicon to adhere to

Oh no! I suspected as much!
 
S

Sedated

I always install my uprights a couple mm above the tray. This allows for a full beed of Silicon below the vertical post and the tray. You should always bed the base of the vertical into wet Silicon imo to create a water-tight seal as this is where 99% of showers leak.

Stuart Thanks
If you reread my first post the fitter forgot to put any Silicon between the tile/tray/upright fitting! And when he took it out at my insistance, the gap between tile and tray was miniscule and hard to get sealant into. I think its failed cos of that reason.
 

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