Dot & Dab travertine?

[Branty]

british standards are guide lines not laws they are updated from time to time as new fixing methods come along if you follow the guide lines good luck to you but if you dont the tile police wont come and arrest you lol

But if a tile falls off and does some damage, you will be liable.

 

[Branty]

i wonder how you would fix these sucker mate
1000 x 500 x 20 weight 80 kg Indian granite
spot fixed ?? (theres really no other way )

If all you can do is spot fix them, then I'd say they need to be mechanically fixed.
If you're just adding spots of adhesives to the back of a tile that size and weight, you're asking for trouble.

 

[spanky]

I would think over a certain height it would definately be safer to pin them.

They are bery beautiful though.

 

[Branty]

I've worked for BAL only 4 months now, and I've seen plenty of reasons why spot fixing , and not getting a full bed of adhesive doesn't work, especially on floors.
If you have to guage your adhesive inatead of notching, you need to be getting 100% in wet areas.

 

[Spud]

I've worked for BAL only 4 months now, and I've seen plenty of reasons why spot fixing , and not getting a full bed of adhesive doesn't work, especially on floors.
If you have to guage your adhesive inatead of notching, you need to be getting 100% in wet areas.

i couldnt agree more this can be achieved if done correctly

 

[Branty]

I have to add though. Your adhesive cant exceed a 6mm bed, 10mm in isolated areas. To do all this with a guaging trowel is very time consuming. If a wall is only running out by 6 mm, it would probably be easier to make it good before you start.

 

[Branty]

The big problem with d&d, is not necessarily the coverage, although that has to be good to support the weight of a tile. The big problem is bed thickness, if you are bedding over the adhesives limits (5/6mm for most bagged adhesives of most manufacturers), you run the risk of excessive shrinkage and tiles debonding. I've seen it for myself today. 800x800 tiles d&ded. If the customer hadn't been on the ball, and notice the tiles coming loose, then one of them could have well fallen off the wall with the slam of a door.
Just because someone says they been d&d fixing in prestigious establishments, doesn't make them right.
Adhesive technical departments also get called out to such places, to resolve tile failures.

 

[Fekin]

But we are getting away from the original problem of dot and dabbing in this thread, as that was onto plasterboard, and not blocks.

 

[The D]

The problem we have now is the people who have said d and d is a good and acceptable method have dropped them selves in it a bit. As they have said they do this all the time and it is perfectly ok and we are all fools for suggesting that it is not an acceptable method and we don’t know what we are talking about. But now they have said they do it they can’t go back and say ok all the jobs I did like that are substandard. The only way forwards for them now is to convince every one that they are right. They can post pic and clamed to be expert witnesses but can they get any adhesive manufacturers to back them up or can they show us in the British standards where it says this method is acceptable. And the British standards are the minimum standard that we all should be working to if you are not then by definition your work is below standard.

 

[pjtiler]

If all you can do is spot fix them, then I'd say they need to be mechanically fixed.
If you're just adding spots of adhesives to the back of a tile that size and weight, you're asking for trouble.

never done this sort of work mate have you ??
its a good job i have and so far ive not killed anyone

jobs like these are all done to the architects specifications
and checked daily buy the clerk of works and the site engineer
and just so you,ll sleep tonite i used
L pins