Failing Shower Floor Grout

[Waluigi]

That’s the first think anyone notices when speccing a foam tray- point loading. I agree with what has already been said. 50mm was always the minimum tile size to combat this. I believe there might be some foam trays that allow it though.

 

[hmtiling]

That’s the first think anyone notices when speccing a foam tray- point loading. I agree with what has already been said. 50mm was always the minimum tile size to combat this. I believe there might be some foam trays that allow it though.

Yep

That’s the first think anyone notices when speccing a foam tray- point loading. I agree with what has already been said. 50mm was always the minimum tile size to combat this. I believe there might be some foam trays that allow it though.

There are

 

[pisht]

I hadn't thought about the point loading which could be a factor.

I sent the issue to Wedi as well and waiting for their feedback.

Whether point loading is a contributing factor or not, I think a big problem is the unsanded grout and not having the strength for the large gaps.

 

[Waluigi]

Just checked the spec for every Wedi Tray and it all comes back with a minimum tile size of 50mm x 50mm.

Wedi call it ‘wheelchair load bearing’

https://www.wedi.de/fileadmin/media..._floor_level_showers_GB_2013_v1_rz_SCREEN.pdf

 

[Flintstone]

What was the brand of grout used? I don't think sanded grouts are any stronger just more body to them to allow them to fill wider joints.

 

[pisht]

What was the brand of grout used? I don't think sanded grouts are any stronger just more body to them to allow them to fill wider joints.

Kiesel

 

[pisht]

Just checked the spec for every Wedi Tray and it all comes back with a minimum tile size of 50mm x 50mm.

Wedi call it ‘wheelchair load bearing’

https://www.wedi.de/fileadmin/media..._floor_level_showers_GB_2013_v1_rz_SCREEN.pdf

It does also say minimum size for glass mosaic is 20mm x 20mm. Does this mean for glass mosaic 20mm x 20mm is fine but all other tile should be 50mm x 50mm?

The tile is glass mosaic but some pieces are under 20mm x 20mm.

 

[hmtiling]

I hadn't thought about the point loading which could be a factor.

I sent the issue to Wedi as well and waiting for their feedback.

Whether point loading is a contributing factor or not, I think a big problem is the unsanded grout and not having the strength for the large gaps.

You're focusing on the grout when whichever grout was used you would have had issues here.

 

[pisht]

FYI, this is Wedi's response to tile size:

"Wedi does have tile size recommendations but your shower pan Fundo Primo can accept any size tile. Our recommendations follow industry standards in regards to installation and appropriate setting materials however different products can offer there own recommendations."

The are also fine with the contractor removing the tile, thinset and grout and re-installing on the existing Wedi board and has discussed recommendations with the contractor. They have said:

"I have provided you with multiple options to repair that all fall within warrantied repair methods. You concerns have discussed with your contractor, my Canadian Director has been copied in all correspondence, our North American Director provided an explanation on how to repair your situation."

I still have my doubts but I suppose I should accept the manufacturer's advice. The problem I now have is finding a replacement tile as the tiles used are discontinued.

 

[pisht]

Wedi has been unwilling to confirm if there could be performance issues reusing a Wedi board on a shower floor i.e. if my contractor removes and re-installs the tile on the same Wedi board, could the reused Wedi potentially cause a failure in the future.

I am looking for some actual experience. Has anyone reused Wedi board on a shower floor? If so, are you aware of any problems caused by doing so?

Thanks.