Installing shower with tile backer boards

[tommyleestaples]

Hi all, 

 

I have a square en-suite which has 3 walls made of stud work and then one wall is thermalite blocks. I am looking to use insulated tile backer boards with a shower tray. I just wanted to make sure I was doing it right!

 

I am planning to board the walls with 12mm Jackoboard insulated tile backer board right down to the Moisture resistant T&G chipboard.

There shower tray area with have a coat of SBR and then bedded onto a sand and cement bed with Classi Seal Shower Tray sealant tape as an upstand around shower and then it will be tiled which will overhang the shower tray to ensure water runs into the tray.

The remaining floor will be boarded with 6mm Jackoboard insulated tile backer board cut around shower tray and on a bed of tile adhesive and then screwed to the floor. 

 

Please let me know if I have done anything wrong or missed something important. 

 

[Beau]

I might look at setting the tray in under the backer board a bit. I recently installed a tray relying on the tiles for the overhand but trays are not always perfectly straight and true so it was a bit marginal. I added a shower sealing kit which has a tape which you bond to the backer and tray to get a good seal. Even that was a pain as the provided seal/glue didn't stick to the tray well. I used Jackoboard but will be going back to MS plasterboard and relying on the sealing kit to keep things dry for the next one.

[nod]

  On 01/04/2025 at 10:24, tommyleestaples said:

Hi all, 

 

I have a square en-suite which has 3 walls made of stud work and then one wall is thermalite blocks. I am looking to use insulated tile backer boards with a shower tray. I just wanted to make sure I was doing it right!

 

I am planning to board the walls with 12mm Jackoboard insulated tile backer board right down to the Moisture resistant T&G chipboard.

There shower tray area with have a coat of SBR and then bedded onto a sand and cement bed with Classi Seal Shower Tray sealant tape as an upstand around shower and then it will be tiled which will overhang the shower tray to ensure water runs into the tray.

The remaining floor will be boarded with 6mm Jackoboard insulated tile backer board cut around shower tray and on a bed of tile adhesive and then screwed to the floor. 

 

Please let me know if I have done anything wrong or missed something important. 

 

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Why not just use plasterboard and tank the joints The majority of my jobs are PB Even wet rooms 

[nod]

  On 01/04/2025 at 12:13, nod said:

Why not just use plasterboard and tank the joints The majority of my jobs are PB Even wet rooms 

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Todays job 

All plasterboard and tanked 

They have paid 270 m2 for just the tiles