Dot & Dab travertine?

[Gazzer]

All wrong....sounds like you know more than they do anyway.

 

[Varley]

Waterproof adhesive does not protect any surface from water damage, the substrate should be tanked prior to tiling. All waterproof adhesive means is that the adhesive doesn't break back down when it comes into contact from water, it still lets water through to the substrate.

 

[Gazzer]

Adhesive and grout is water resistant not water proof. Plasterboard is not water proof either....your thoughts are all correct and you should stop them fixing NOW

 

[CJ]

They are taking the mick...................no way on earth ANY tiles should be D&D.

Ring up any adhesive company and they will tell you.

Bad Bad practice..............and cheaper for the tiler

 

[grumpygrouter]

Yep, I have to agree with everyone else, deffo a big NO! NO!.

Yes it is porous but you are incorrect about the adhesive being waterproof, it isn't. Hopefully they are putting the tiles onto bare plasterboard and not skimmed, these are heavy tiles I would imagine.

I think you will find (I may be wrong here) that british standards say that adhesive should be applied and combed through with an appropriately sized notched trowel. it will certainly say that on the bag of adhesive!!

 

[spanky]

12 or 13 responses, all saying the same, yet I am still being told it is ok by the Tiler and the contractor.

Is there any particular reason not too Dot & Dab Travertine (30kg Sqm) onto a plasterboard wall. There is no PVA on the wall, it is bare, new plasterboard.

Thanks

 

[Fekin]

All I can say is what everyones already said, dot and dabbing is not the propper method for any form of tiling, never mind Travertine.
All tiling needs to have adhesive covering the whole rear surface area of the tile, period.

Stand your ground and insist they fix your tiles correctly, and redo what they have botched already, and dont pay a penny until they have fixed their "errors"

And no adhesive company in their right mind will say their product will preform propperly with just dabs of adhesive.

Basically if they are only putting a dab in each corner of the tile then thats the only aread holding the weight of the tile, so if they adhesive covers the whole back of the tile then the weight is shared out over a greater area, meaning they tiles will "should" never fall away from the wall.

If their doing it on floor tiles then within weeks they could all start cracking, maybe sooner.

 

[Gazzer]

Lets have details, what adhesive are they using and then we can sort it once and for all.

 

[spanky]

Adhesive used:

Keraflex Maxi & Ultra Proflex SP Adhesives.

Enc Picture showing what the Tiler says is on the back of each tile.

 

[Gazzer]

I am sure neither manufacturer of thos adhesives would say dot and dab is a correct method. i suggest you stop the tiler and ask the manufacturers, Mapei (MAPEI) and Ultra (Instarmac: Highway Maintenance, Streetscape, Flooring and Contract Tiling products and systems) for their advice.
As shown in the picture you have not got full coverage and you are likely to have problems in the future.