C
cruddles
1st post and it's long winded so bare with me.
Problem with a wet room shower approx 80cm x 160 cm. Tiles in central area started flexing and grout breaking up. I removed tiles, adhesive & tanking membrane. I've discovered that floor is 18mm ply directly onto joists which are 40-45cm apart (across the room). I assume that there is enough flex in this to cause the tile lift etc.
I cannot access the trap so it's therefore not possible to simply add another layer of ply or wedi board etc as I cannot bring the level of the trap up.
The solution that I am thinking of is to cut out the plasterboard ceiling below and put install noggins to support the floor. I have other plastering work on the agenda so plaster patching isn't a big deal.
3 questions - 1) is there an easier option that I am not seeing? 2) Will I have to dismantle the trap to re-tank under it's rim to get a good seal? 3) Can you recommend a good flexible adhesive for this situation?
Thanks in advance for any advice.
Cruddles
Problem with a wet room shower approx 80cm x 160 cm. Tiles in central area started flexing and grout breaking up. I removed tiles, adhesive & tanking membrane. I've discovered that floor is 18mm ply directly onto joists which are 40-45cm apart (across the room). I assume that there is enough flex in this to cause the tile lift etc.
I cannot access the trap so it's therefore not possible to simply add another layer of ply or wedi board etc as I cannot bring the level of the trap up.
The solution that I am thinking of is to cut out the plasterboard ceiling below and put install noggins to support the floor. I have other plastering work on the agenda so plaster patching isn't a big deal.
3 questions - 1) is there an easier option that I am not seeing? 2) Will I have to dismantle the trap to re-tank under it's rim to get a good seal? 3) Can you recommend a good flexible adhesive for this situation?
Thanks in advance for any advice.
Cruddles