a technical question

[leonard]

Hi dear members I am recently new to tilers forum and have not had any technical issues to ask until now, i have recently plastered a bath room for a customer and he wants the 2 main long walls tiling 11ft long x 8ft 4inches high, he has purchased a natural slate tile that is approx 10mm thick, the front of the tiles has been machined and polished, the thickness varies in differant places on each tile as they have not been callibrated, tiles are 600mmx300mm, once the fronts have been sealed and the new plaster treated with a good quality pva, what addhesive is required to put them on the walls, i have spoken to 2 local tile show rooms and they have gave 2 differant answers, i would greatly appreciate help in a proffessional opinion from fellow tiles forum members. thanks Leonard

 

[Dan]

Welcome to tilersforums.com | Tile Forums | Tiling Forum!

Hello leonard, welcome aboard www.tilersforums.com. Stick around, I'm sure you'll like the place.

 

[diamondtiling]

Welcome to the forum........

First off forget pva, it has no place in any tiling situation, instead use an acrylic bond.
You need to check your weight issues with those tiles and you would have been better not plastering the walls. Bagged adhesive is your only option and it should be a good quality one part flexible, Mapei cater for all your needs, have you a Tilegiant near to you?
You need to start with the thickest tiles and work down to the thin ones.
Also have you considered tanking the walls in the bathroom because you need to if they are going to have constant water on them from a shower.

What are the two tile shops advising you to do?

 

[albyshellshear]

Hello Leonard I think the pva is a bad idea as pva is a big NO when tiling you need a good primer plus are the walls skimed you need to read a few of the threads on here about pva and plaster weight issues espesialy since you are using very large heavy slate someone will point you in the right dierction I am sure by the way :welcome:

 

[Dave Ramsden]

Morning Leonard,

First of all, :welcome: to the tilers forums. Your sure to find every answer you need right here!

As the tile chosen for the job is so thick and heavy you really need to consider screwing hardi-backer board across the area before tiling as skimmed plaster can only hold a load of 20kg per sq/m.

PVA is not a suitable primer as it only forms a skin over the substrate to which the adhesive you use wont adhere properly.

You need to be using some sort of flexible adhesive (preferably a similar shade colour as your chosen grout). I would recommend a flexi slow set rather than flexi rapi-set if your not skilled with working with this type of material.

Hope this helps.

 

[albyshellshear]

Beat me to it Dom nice one mate leonard listen to this guy (diamondtiling) he knows his stuff ....Alby

 

[david campbell]

while p.v.a i sstill widely used in plastering it is totally tabboo in tiling
http://www.tilersforums.com/tile-ad.../2511-p-v-versus-primers.html?highlight=p.v.a

i would also consider using hardiebacker or a suitable cement board to cope with the weight,also as above seperating the tile into different thicknessess will help

 

[Alan.P]

Some sound advice above, as has been said, your substrate is NOT suitable for your tile type, is it plastered dry wall or block?

 

[mikethetile]

:welcome:no point me saying anything as its all been said:lol:

 

[united]

:welcome: to the forum

No point in repeating the above advice

 

[Rich]

:welcome:
It seems that you have all the answers you need above, you wont find anybody on here that will disagree, PVA a no no and well worth looking at over boarding with a backer board like No More Ply or HardieBacker. Top advice gents

 

[DHTiling]

Hello and welcome... Top advice above,,

 

[Diamond Pool Finishers]

hi:welcome:to the forum

 

[White Room]

Hi and welcome

 

[The Legend; Phil Hobson RIP]

Hi mate and :welcome: all good advice above. Nothing to add, guess you realise by now. PVA is a no-no, Sbr is the way to go, and take onboard weight issues'. Keep asking

 

[faithhealer]

welcome to the forum Leonard

 

[suave]

:welcome:

 

[leonard]

thanks to all for your expert advice, i had quoted a great price for a customer i had done other property maintenance for, i have just put a new kitchen in for him including taking out stud walls/plastering etc. the floor and walls above the work tops have to be tiled, as the quote was based on the basis of £xx sq mtr he has decided to have pure white porcelain tiles on the floor 600x300mmx10mm thk, going on to concrete. the walls have grown arms and legs and he has decided to have mosaic which was'nt priced for, can some of you fellow tilers forum members give me an honest un-biased reply as to what this customer could or should be paying per sq mtr for the floor and for the mosaic work per sq mtr, the mosaic work has approx 9 sockets to work around.a big thanks to you all leonard.

 

[leonard]

Hi a big thanks for your advice, 600x300 pure white porcelain tiles, how much per mtr to fit to a concrete floor in a kitchen, also customer after being quoted now decides tiles above work top that has approx 9 sockets is going to be mosaic work which is'nt what i have quoted for what is a fair price per mtr for the guy in 1inch marble mosaic as he feels i should stick to price for the origional quote but when goal posts get moved i think all members will agree this is'nt fair or acceptable. your views, a big thanks leonard

 

[DHTiling]

Hi leonard..

It isn't fair at all if they shift the goal posts, did you state the quote was for just ceramics and not naturals or porcelain..?

 

[leonard]

Thanks for the reply the quote was based generic at £xx per sg mtr for eg if people step out of the perameters of ceramic and suddenly say they want porcelain, mosaic or even glass tiles this is'nt on what do you think is a ball park figure per mtr i have never took a lend of any one in my life. thanks for the reply. leonard.

 

[Alan.P]

the quote was based generic at £xx per sg mtr for eg if people step out of the perameters of ceramic and suddenly say they want porcelain, mosaic or even glass tiles this is'nt on.

Surely it's down to you, the fixer to quote on each job on it's own merits, as for stepping out of the 'permateres' of ceramic is that all you do normally

Sorry to be blunt.

 

[diamondtiling]

I think he is saying that he agreed to fix a certain tile for an agreed price but then the customer has decided to change the materials to mosaic or porcelain. If he had budgeted for gray flexy and now they want white porcelain he will have to use white adhesive which is more expensive.
If this happens to me then I quickly alter the price accordingly there and then.

 

[leonard]

thanks for the advice:smilewinkgrin:

 

[leonard]

thanks, leonard :wave2: