Grout falling out of shower tray

Live at Three

Hi
In our upstairs bathroom, there is a bead of grout between the shower tray and the shower tiles. There is a bit of 'give' between these two sections, which results in the grout being constantly pulled apart, and it keeps falling out. The builder has been around to repair it 2 or 3 times, but it never lasts.

I am worried about dampness escaping, but builder says not to worry about it as the way the tray slopes up behind the tile stops water from flowing that way.

I'm not so sure in the long run!


Any suggestions? I would be willing to try it myself.

Is there a silicone or grout that has some flexibility? Should I use a profile tool..etc. Thanks

jodaw

Should be silicone between tile and shower and no grout. Sounds like a cowboy job to be honest. If builder is telling you, oh dont worry shower tray is slope so even if it gets in behind tile, straight do not listen to another word.

Sounds to me like shower tray not installed correctly. There should be zero to very little movement. Certainly nowhere near enough to break the silicone seal.

Proper job would have been
- all walls prepared with tanking membrane
-tray correctly installed with sealing strip also
- tiled and silicone seal between tray and tile
- silicone rather than grout also in corners

jodaw

Quick fix although if other underlying issues it may not last would be,
- remove all existing grout/silicone between last tile and tray
- ensure both surfaces are really well cleaned removed all residue
- apply generous bead of silicone into gap
- smooth with wet finger or profile tool

Live at Three

jodaw wrote: »

Quick fix although if other underlying issues it may not last would be,
- remove all existing grout/silicone between last tile and tray
- ensure both surfaces are really well cleaned removed all residue
- apply generous bead of silicone into gap
- smooth with wet finger or profile tool

Thanks, and is there a silicone type which is more elastic that others?