Help!: Nightmare tile removal

[blocko]

Im in the process of removing all of the wall tiles from my ensuite and have a few questions.

Most of the tiles are coming off of the solid walls just fine, but some are taking off the plaster with them leaving the bare sand cement underneath!

I am going to fit travertine tiles and really dont want any problems afterwards.

Im not sure if to go for a re-skim or dot n dab plasterboard on top or can I go about it some other way???

Ta in advance

[Dan]

That looks pretty damn good to me. Get the rest of the adhesive off and I'm sure you can tile it at that. Your plaster looks tough, I guess the adhesive was too and that's why it's pulled the odd bit off. Providing it's not too much you should be okay tiling that as it is (without the adhesive though).

I'll let the professionals reply too, but I think I'd be going for it as-is.

[Fred]

You need to check the weight of your travertine for per m2. New plaster can only take 20 KG per m2, including adhesive............

[CJ]

Doing the same job at the moment............tiles literally fell off..........walls covered in old adhesive............out with a pump up plant sprayer.....filled with warm water. Spray walls.....left for 5 mins, and the old stuff came off with no problem. Thought everything was going ok. Until this morning when the plumber turned up to remove old bathware.

Behind the bath had not been plastered at all.........it is straight back to the blockwork. So tomorrows job is to cement a bit of plasterboard against the blockwork.......and then try out Bal's new quick dry render

Plastering I can do........to a fashion. Rendering is the same principle. Ain't it

[bassman]

Agree With Dan. persevere with getting the adhesive off should be fine. how about some more pics when you've finished.

[IvegotsTILE]

Just check you can't pulll the plaster off easily,if it stays on ok just remove the old adhesive,a wallpaper stripper will help if its really awkward

[ssharpe]

yea the plaster looks sound ,just scrape off the rest of the adhesive and prime the walls.give it a chap to see if any areas are boss first tho,looks solid base in the pics.

[mikethetile]

soak addy and scape of with wallpaper scraper, if all the walls clean up like that youve nothing to worry about

[blocko]

Thanks everyone

What should I be priming the walls with?

[dazzak]

Doing the same job at the moment............tiles literally fell off..........walls covered in old adhesive............out with a pump up plant sprayer.....filled with warm water. Spray walls.....left for 5 mins, and the old stuff came off with no problem. Thought everything was going ok. Until this morning when the plumber turned up to remove old bathware.

Behind the bath had not been plastered at all.........it is straight back to the blockwork. So tomorrows job is to cement a bit of plasterboard against the blockwork.......and then try out Bal's new quick dry render

Plastering I can do........to a fashion. Rendering is the same principle. Ain't it

Let us know how that quick dry render goes for you. Been wanting to try it for a while now.

[CJ]

Let us know how that quick dry render goes for you. Been wanting to try it for a while now.

Oklay Doklay............never used it myself?, so it should be fun

[doug boardley]

would be better if you could get the plaster off as well, and tile straight onto the sand and cement render with a white single part flexible adhesive, giving the trav tiles a skim of adhesive on the back.

[whitebeam]

Doing the same job at the moment............tiles literally fell off..........walls covered in old adhesive............out with a pump up plant sprayer.....filled with warm water. Spray walls.....left for 5 mins, and the old stuff came off with no problem. Thought everything was going ok. Until this morning when the plumber turned up to remove old bathware.

Behind the bath had not been plastered at all.........it is straight back to the blockwork. So tomorrows job is to cement a bit of plasterboard against the blockwork.......and then try out Bal's new quick dry render

Plastering I can do........to a fashion. Rendering is the same principle. Ain't it

It will be heavier to use and make sure the wall to which applying is damped down. When it's applied rule off and leave for a bit, if you try to float or trowel to early it will drag the moisture to the surface and roll/fall off the wall, so wait for it to pick up a bit then float/trowel

[CJ]

Well, Bal's quick dry render was ok to use.

Mixed up nice and smooth...........and after priming the area, it actually stayed up first time. Drys bloody quick mind, so if your thinking of using it.........knock up small batches and work fairly quick.

[blocko]

Well, Bal's quick dry render was ok to use.

Mixed up nice and smooth...........and after priming the area, it actually stayed up first time. Drys bloody quick mind, so if your thinking of using it.........knock up small batches and work fairly quick.

Glad it went well What did you use to prime the walls?

[dnnyby111]

Like many others have already said walls look in good shape, just scrape off addy, prime with bal apd/evo primer etc NOT PVA and away you go

[dazzak]

Well, Bal's quick dry render was ok to use.

Mixed up nice and smooth...........and after priming the area, it actually stayed up first time. Drys bloody quick mind, so if your thinking of using it.........knock up small batches and work fairly quick.

Good to hear. Thought it would go off fairly quickly, so I'll be knocking it up in small batches when it comes round to using it. Would you reccomend it over traditional plaster?

[doug boardley]

I'd seriously reconsider about tiling onto the skimmed plaster, Fred mentioned the 20kg weight issue, this is on any skimmed plaster not just new! Your Travertine and adhesive combined weight will very likely exceed the safe loading limit for skimmed plaster imo

[CJ]

Glad it went well What did you use to prime the walls?

APD

[BDS]

Col i always keep at least one bag of render in the van just in case you never know when ya need it,especialy when the last 3 jobs have been nightmare jobs .

[Ajax123]

I'd seriously reconsider about tiling onto the skimmed plaster, Fred mentioned the 20kg weight issue, this is on any skimmed plaster not just new! Your Travertine and adhesive combined weight will very likely exceed the safe loading limit for skimmed plaster imo

Something else to consider is the bond between the plaster and the render. It has come off in small patches which hopefully means the adhesive has pulled it away. My expertise is not the tiles so I can't comment on the weight of them but I do know gypsum which is the skim bit. If the render was not primed before the skim coat was put on it might not have a strong enough bond to take the weight of the tiles. It would be worth using a small bolster and hammer to try removing a small patch of the plaster. If it comes away cleanly and easily it could be at risk epecially if the interface shows a dusty looking surface.

I used the Bal quick drying render for some patching - good product but I agree hard work mixing in small batches. I actually lost half my first batch cos it went off. If big areas I think would use a polymer modified sand cement render next time. Easier to mix up in a bigger batch. As I say great for atching though.

[doug boardley]

Something else to consider is the bond between the plaster and the render. It has come off in small patches which hopefully means the adhesive has pulled it away. My expertise is not the tiles so I can't comment on the weight of them but I do know gypsum which is the skim bit. If the render was not primed before the skim coat was put on it might not have a strong enough bond to take the weight of the tiles. It would be worth using a small bolster and hammer to try removing a small patch of the plaster. If it comes away cleanly and easily it could be at risk epecially if the interface shows a dusty looking surface.

I used the Bal quick drying render for some patching - good product but I agree hard work mixing in small batches. I actually lost half my first batch cos it went off. If big areas I think would use a polymer modified sand cement render next time. Easier to mix up in a bigger batch. As I say great for atching though.

that's why the weight ratio is considerably less when walls have been skimmed, the addy will stick to the skim, but the skim will be pulled off the base substrate.

[blocko]

I am now wondering if I should remove the plaster (on one of the walls it has come off quite alot), and take it back to the sand/cement render underneath?

[whitebeam]

I would then prime the old s/c because there will be plenty of dust