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Retiling wetroom advice on how best to proceed

The pressure :fearscream:

I will try to keep you guys updated with a daily log project starts next Sunday. Hoping to do it all besides the electrics and plumbing.

Least I can do for all the help everyone has given.

I love doing DIY, although this time I may be over my head. Oh well it’s all a learning experience. All be it with some very expensive tiles ‍♂️
 
Any updates?

Just continuing to do more reading and research watching videos etc..

Apparently have either prime the surface of the ply with keragip if using the normal bio gel or use the rapid set and not prime. Is it true I have to use a 12mm trowel to fit the wedi trey and boards to wall and floor??

The only bit of concer at the moment is how I will remove the current tiles and fitting the drain former..
 
So I thought I would give you guys some background info and an overall view on the project.

This is the bathroom as it is:

wetroom floor.jpeg
Shower wall.jpeg
Radiator wall.jpeg
Toilet wall.jpeg
IMG_0347.jpg


As you guys will already be aware the leak is coming from the centre of the impey dec through the drain.

The plan is to remove the bottom row of tiles from the radiator wall and the back toilet wall and half the of wall toilet roll holder wall up to the shower glass. This will allow me to fully remove the floor and also adjust the radiator pipework so that it comes through the wall rather than the floor.

I will then strengthen the existing wooden floor with timber noggings overlay the whole floor with 25mm wbp ply, which I will glue and screw down every 100mm. I will then stick and screw down 20mm wedi board on the floor so that the floor is level with the fundo ligno former (1200 x 1450). The drain will set in a former provided by wedi so there is no undue movement.

The last row of tiles will then be reinstalled I have a couple of boxes spare. on the floor 900 x 600 tiles will be fitted, with matching mosaics on the former and the wedi seat. on the wall i will put on 4 sheets of the 3x1 tiles slabs with a rectangle alcove. I will keep the existing shower head but will replace the shower valve with a hans grohe shower select system. I will remove the existing kohler glass, and fit a bespoke frameless enclosure with a door!

I have 2 weeks before the missus has said she will chuck everything away as the house is a mess!!! Tick Tock!!

IMG_0469.jpg
IMG_0470.jpg
 
I’m glad you said Hansgrohe Shower Select and not Grohe Shower Smart.

You need a degree just to put the handles on to the shower smart. 😀

I hope it goes well.
 
Please don’t forget to post in progress photos, and good luck!
 
Any advise guys, I wish to build a mini dwarf wall at the end of my bench, which the shower glass will be cut so that it fits over the wall. Rather then the glass being flushed with the side of the bench.

What size shall I make this wall. The bench is 460mm in depth and about 550mm in height.

What size wall look the best?
 
Also, I was wondering if instead of the 25mm wbp plywood i am planning to use to overboard the joist, can I use the Knauf Gifaboard either the 18mm or 25mm, will this be as strong as plywood and be suited for the purpose of removing any deflection and strengthening the floor?
 
So stage 2 done wall tiles removed, the Hilti machine was awesome! Impey blank stick tanking of death horrible stuff to take off. As a side not only 1m in height of the wall was tanked.

D5EC7EC4-9F6A-42D6-BF20-1D982862BB58.jpeg
21630374-9621-48FF-AC30-2A29F81CD0F7.jpeg
77F933D3-8334-41F8-BB5A-7D7B8A832C9D.jpeg
5C1E0231-3C6A-4318-9C8E-B929428B39AD.jpeg
6CD14A5C-7254-4F45-AD34-7C0250697AEA.jpeg
 
Tanked with tilesafe?

Impey used to say that the maximum thickness of tiles and adhesive onto tile safe was only to be 10mm which wrote off virtually every single tile I was expected to install.
 
On the wall I removed the tiles from this is the wall where the 3.5mm slabs are going. However, there will be a difference in depth between the old tiles and the slabs.

The total depth of the existing wall tiles is about 30mm this is tiles, adhesive and boarding. Now my new depth with will be 12.5mm plus 3.5mm plus about 6mm adhesive?? This adds up to roughly 22mm I am 8mm short.

To compensate for this difference in depth can I put some plastic packets behind the wedi board to gain the extra 8mm?
Broadfix Levelling Shims Kit Assorted - https://www.toolstation.com/shop/Screws+%26+Fixings/d90/Frame+Fixings/sd1950/Broadfix+Levelling+Shims+Kit/p43092
 
Have you put a straight edge on the existing tiles?

You want to get your new ‘tile’ perfectly flush with the existing tiles? First thing is see how flat the tiles are. And how level the joint is. It has to be perfect
 
On the wall I removed the tiles from this is the wall where the 3.5mm slabs are going. However, there will be a difference in depth between the old tiles and the slabs.

The total depth of the existing wall tiles is about 30mm this is tiles, adhesive and boarding. Now my new depth with will be 12.5mm plus 3.5mm plus about 6mm adhesive?? This adds up to roughly 22mm I am 8mm short.

To compensate for this difference in depth can I put some plastic packets behind the wedi board to gain the extra 8mm?
Broadfix Levelling Shims Kit Assorted - https://www.toolstation.com/shop/Screws+%26+Fixings/d90/Frame+Fixings/sd1950/Broadfix+Levelling+Shims+Kit/p43092
6mm adhesive bed is a lot. You'll want a 2/3mm solid bed
 
On the wall I removed the tiles from this is the wall where the 3.5mm slabs are going. However, there will be a difference in depth between the old tiles and the slabs.

The total depth of the existing wall tiles is about 30mm this is tiles, adhesive and boarding. Now my new depth with will be 12.5mm plus 3.5mm plus about 6mm adhesive?? This adds up to roughly 22mm I am 8mm short.

To compensate for this difference in depth can I put some plastic packets behind the wedi board to gain the extra 8mm?
Broadfix Levelling Shims Kit Assorted - https://www.toolstation.com/shop/Screws+%26+Fixings/d90/Frame+Fixings/sd1950/Broadfix+Levelling+Shims+Kit/p43092
Use a thicker light weight tile backer board something like Jacko board or Marmox board
 
Pack out with long strips of either ply or plasterboard. It sounds like 9.5mm plasterboard might be suitable?

Doing use packers as you have to pack along the whole length, not just where the screwed are going.
 

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Retiling wetroom advice on how best to proceed
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