Grout Advice Required

[mz30]

Hi
From you original post your shower tray is four inche's smaller than your shower screen and you have tiled around the edge of the tray to meet the screen?

If that's the case no amount of grout/Silicon or epoxy is going to stop that shower leaking.

 

[kinhell]

Sorry if I wasn't clearer. The shower is a walkin one with 3 sides tiled. The tray does not reach the sides and approx 4 inches of tiles all around take it up to the wall. So do you not think the epoxy grout would do the job?

 

[DHTiling]

The only other problem that needs addressing as well is..if the water has damaged the substrate under these tiles..thus causing them to de-bond.....apart from that it can be repaired.....

 

[mz30]

Before i could give any advice ,i am assuming that if it's a walk in shower it has a low level (flat on the floor)tray?

If it has, is the tiling sitting on the tray or sitting flush to the edge?

Can you post a picture so i could give my opinion?

 

[kinhell]

During taking the grout out one of the tiles lifted up. Underneath the wood was rotten and soaking wet. So I've managed to get all the tiles up intact and removed all the rotting wood etc. letting it dry out now.

Here's a couple of pictures of it.
http://i180.photobucket.com/albums/x102/satinagra/DSCF0161.jpg

http://i180.photobucket.com/albums/x102/satinagra/DSCF0160.jpg

As you might notice the right one side has been filled in with mortar and seems to be intact and dry.
What i found was that the water had penetrated the addhesive on the front, left and back.

What would be the best solution for this ?
I've thought about filling the rest with mortar and adding something that makes it completely waterproof.
Any other ideas would be appreciated along with what adhesive and grout to use.

 

[DHTiling]

I would replace all the timber with aqua panel or similar....Has the water ingression not travelled up the walls ...?..

 

[kinhell]

The water seems to have gone up the plaster board in small areas about 2 inches and seems to be drying out today. In the back wall I have access and felt the plasterboard and its not wet.

How would I use the aqua panel in this situation not having used it before?

 

[DHTiling]

The timber that i can see in the sides..is this solid timber framing or play overlay..?..if its an overlay then re-move this and replace with aqua panel...if it is solid framing then it is a bigger job to do...

 

[mz30]

I would have to concur with dave(about using aquaboard).
It's the best chance in a bad situation.


I have seen this sort of thing on numerous occasion's and regardless of the fix the chances of that shower ever being totally waterproof are very slim ,aqua board or not.

 

[kinhell]

The timber you can see around the sides is the flooring. There was 3 x2 timber there but rotten through.

Just to understand what you are saying, should I fill in the gap up level with the top of the tray and put lengths of aqua panel on top sloping gently inwards towards the centre of the tray? If so what would be the best thing to fill the gap with, mortar like the right side with a waterproofing agent?