To my horror, our normal shower also appears to have a hole on it :-(.
Please remind me what's the best board to use on stud walls in the shower?
Thanks.
Since posting it, I found Richard's other postings. Aquapanel is what you are recommending for this task?
One more question:
If...
I wasn't there when it was done. But I can say with 90% certainty that it was smeared over, the old grout wasn't raked out. The tile doesn't appear to be loose, but the tiles on either side have very small movements.
I went behind the ply. The plys are on the stud wall. The builders did it, with some waterproofing material on them. I thought that's normal on stud walls.
I am not sure what ply was used. I can ask the builders and post you an update tomorrow.
The adhesive used was Granfix flexible and...
This is fairly new shower in the loft conversion we did last year. It is not used often. I tried to use it once a week to keep the negative head pump going. I went behind the plywood and didn't see anything untoward. I don't think the ply is rotten or anything.
What's my next move?
There is a tiny hairline crack in between two tiles on the grout on the side where the shower unit is installed. It is at the bottom of the shower near the shower tray. It was fixed once but it has come back. If I push the tile, it appears to be moving a little. There is plywood behind it...