Tile on tiles advice

[JLM Tiling]

Wotcha guys, hope everyone's well and business is good.

Right. Tile on tiles. Yeah I know what you're thinking, don't do it. That's what I said to the project manager when he first asked but we talked a bit more and it turns out he's got four other big jobs on the go and well it got my attention so I said I'd have a look. Begrudgingly though, I wasn't keen. Anyway I've had a look and the wall is skimmed plaster, in good nick it seems. Tiles on it are wafer thin 150 square, well attached, good addy (looks like Ardex x77w) and the grout is good, no cracks or anything. I said that really it should be ripped down but there just isnt the money etc. Figured if I don't do it someone else will and hey times are hard.

Oh yeah forgot to mention they're supplying the materials. It's some nicobond addy, never seen it before. And it's tubbed.

So water dispersion addy, on existing tiles, on skimmed plasterboard. I know what you're all thinking, it doesn't get much worse than that.

I've given him the technical details and argued this way and that but there is no convincing him. So gonna crack on.

My intention is to firstly score the existing tiles up with the grinder. This obviously is to give something for the gear to lock on to and also to expose the biscuit a bit which I'm hoping will help the gear to set.

Then wash it down with sugar soap to clean up the left over glazed faces.

Then i'm gonna painstakingly batten everything (wood bit, ceramic bit, plug, screw, tap tap, drill)

Then I'm gonna tile. Thinking 8mm trowel, was thinking about maybe ten (new tiles are 300 x 250) but then thought that that's gonna make the set even slower? As in more water to disperse as it were?

Then i'm gonna leave it for about three days while I do the kitchen and another toilet

And then grout, pick up my cheque and walk out the door feeling ashamed, used and kinda dirty!!

Anyway you're an opinionated lot, what do you think?!

 

[Gall.B]

What size are the old tiles and what size are the new ones (hope the new ones are smaller)

Nicobonds (yellow tub) ultra grip I think is decent stuff.

Dont like the sound of the job myself pal, but as you say times are hard!

 

[JLM Tiling]

The old tiles are 150mm x 150mm and then new ones are 300mm x 250mm. So sorry to dash your hopes!

Yeah it's in a yellow tub, never used it but checked it out and there are a few good reports.

She's a bugger alright. Thinking about getting him to sign a disclaimer saying I've advised against it and have taken all reasonable measures to guarantee a good fix however I will not accept liability. Don't know if that would be worth the paper it's printed on though. You're not a contracts lawyer by day and a tile advisor by night by any chance are you? No? Well you never know

 

[White Room]

Hope it's left for a long time for the dispersion to dry before grouting, there's alot of maybe's, not one I would entertain but thats me..

 

[JLM Tiling]

Was gonna leave it three days. Do you think that would be enough?

 

[Del W]

Can you get him to supply powdered addy,even if he does,its still risky.but bills must be paid. If you dont someone else will and not care at all.

 

[JLM Tiling]

Already tried, explained the difference between water dispersion and chemical set and he said that they've already got the gear. Had to ship it all from the mainland. Basically the QS messed up the pricing and they're way over budget. Like £1100 over budget, for the tiling, labour only.

Long and the short of it is I'm gonna do it. Got to really, this is gonna end up being two months of pretty well paid work and just been through a sketchy six weeks. Really was asking if there was anything else I could do besides the sugar soap and the grinder. And would three days be enough time to leave it set?

 

[Gall.B]

3 days should be fine m8, dont know if a disclaimer would be much good worth a try tho.

Good stuff that addy as far as tubbed gear goes, should get a good enough grip then you could ditch the battens.

good luck with it

 

[jay]

Just remember its your name have a read http://www.google.com.au/url?sa=t&s...lamPBA&usg=AFQjCNHINJvWYV8oQm2hCGQZX8vnSviRyw

 

[Stewart]

Nicobond ultragrip will not be dry in three days, even though it states on the tub it's suitable for tile on tile. I use a lot of Nicobond products, but haven't touched their tubs for quite a few years now. In my opinion you will be over the weight limit for the substrate. I seriously doubt the use of Ardex to put up original tiles and Nicobond ultragrip is unfit for purpose on this occasion Your reputation is on the line, and though I can understand you have bills to pay, you also have a duty of care to the end customer who will inherit the work that you will be responsible for.

I also have to say that every time a tiler agree's to do potential work on substandard prep, he/she makes it that little bit harder for every other tiler to then ask for suitable prep and materials to carry out their work and on a whole drag the trade of tiling back to the dark ages. Sounds excessive, but true!


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- Sent from iPhone.....

 

[Stewart]

Also tell the builder that it's cheaper to supply weber standard set addy and it goes further.....


---
- Sent from iPhone.....

 

[kilty55]

hello,not one i would like to take on but if you are going ahead with this why dont you take his tubbed gear hes supplying and use it on another more suitable job later and you supply some cement based adhesive,might make you feel a bit more at ease about the job and wont burst your bank either?

hope it works out for you

 

[chille]

Totally understand where you are coming from, needing the work because times are hard, but times will seem a hell of a lot harder if the job fails and you don't get paid.
I really hope it goes well for you, but I personally wouldn't fancy it basically a good bit of work with a fair chance of lots of grief to follow, and guess what no one will remeber the QS screwed up it will all be about you.
Its shocking how these chancers ask us to do bad jobs in order to bail them out, they should take the extra dosh needed out of the QS's wages, or downgrade his/her car from an Audi to a Kia. . . . ha ha
Good luck with it bud.

 

[jwatson]

hello,not one i would like to take on but if you are going ahead with this why dont you take his tubbed gear hes supplying and use it on another more suitable job later and you supply some cement based adhesive,might make you feel a bit more at ease about the job and wont burst your bank either?

hope it works out for you

This looks like best bet.
spatter dash coat should be used on tiles. before fixing.
acrylic bonding and rapid set adi mix

 

[DHTiling]

Wotcha guys, hope everyone's well and business is good.

Right. Tile on tiles. Yeah I know what you're thinking, don't do it. That's what I said to the project manager when he first asked but we talked a bit more and it turns out he's got four other big jobs on the go and well it got my attention so I said I'd have a look. Begrudgingly though, I wasn't keen. Anyway I've had a look and the wall is skimmed plaster, in good nick it seems. Tiles on it are wafer thin 150 square, well attached, good addy (looks like Ardex x77w) and the grout is good, no cracks or anything. I said that really it should be ripped down but there just isnt the money etc. Figured if I don't do it someone else will and hey times are hard.

Oh yeah forgot to mention they're supplying the materials. It's some nicobond addy, never seen it before. And it's tubbed.

So water dispersion addy, on existing tiles, on skimmed plasterboard. I know what you're all thinking, it doesn't get much worse than that.

I've given him the technical details and argued this way and that but there is no convincing him. So gonna crack on.

My intention is to firstly score the existing tiles up with the grinder. This obviously is to give something for the gear to lock on to and also to expose the biscuit a bit which I'm hoping will help the gear to set.

Then wash it down with sugar soap to clean up the left over glazed faces.

Then i'm gonna painstakingly batten everything (wood bit, ceramic bit, plug, screw, tap tap, drill)

Then I'm gonna tile. Thinking 8mm trowel, was thinking about maybe ten (new tiles are 300 x 250) but then thought that that's gonna make the set even slower? As in more water to disperse as it were?

Then i'm gonna leave it for about three days while I do the kitchen and another toilet

And then grout, pick up my cheque and walk out the door feeling ashamed, used and kinda dirty!!

Anyway you're an opinionated lot, what do you think?!

What can i say.. you know it isn't safe on skimmed walls but going to do it anyway.. hope no kids use that room..