Walls, Travertine Tiles and Problems, advice and help needed! Page: 2

[Bubblecraft]

This kind of work makes my blood boil. I agree with all the above mentioned!

As Johnryan has mentioned, there's a good chance that you will be over weight per m2. Plasterboard is 20kg pm2, with plaster skim 32kg pm2. This maximum load should include the weight of adhesive & grout. Hardibacker, Marmox or wedi will be the best way to go

 

[Andy Allen]

This kind of work makes my blood boil. I agree with all the above mentioned!

As Johnryan has mentioned, there's a good chance that you will be over weight per m2. Plasterboard is 20kg pm2, with plaster skim 32kg pm2. This maximum load should include the weight of adhesive & grout. Hardibacker, Marmox or wedi will be the best way to go

think you got that the wrong way round....lol

 

[Bubblecraft]

Whoops! You know what meant lol

 

[YNWA2012]

Thanks for the further info...............so each tile comes in at 4.75kg and 8 tiles make just over a sq m2 so 38 kg total for the tiles. Not sure how much you add for adhesive and grout but i guess this has got to be somewhere in the region of 3 to 4kg! Could someone confirm on this.

So following the above comments about wedi, hardibacker etc it seems like this is the best route. Can anyone offer advice on what should be the next cause of action with these plasterboard and skimmed walls..........how is this wedi or hardibacker fixed to the walls. Apologies for all the questions just trying to ensure the job is done using absolute best quality products

 

[Rookery]

Only just picked up on this thread and as others have said, so far the job has been done wrongly, plain and simple. Only this morning I turned down a job to fix H & F trav to plastered walls, partly cos I couldnt do it until January and partly cos it exceeded the recommended BS weight limit. Your best bet would be to take off all the plaster back to the brickwork and fix 12mm Hardie both glued and mechanically fixed. But first you need to find a new tiler.

 

[Peter Howe]

Never ever use ready mixed adhesive for travertine. It has to be cement based powder adhesive(white) mixed with water to give a good consistent adhesive. And as for the floors I always use a flexible(white) powder adhesive on concrete floors, and a Two-part (latex) flexible adhesive on wooden floors or underfloor heating. More expensive but much better in the long run. I repeat. Never ever use ready mixed adhesive on travertine wall tiles.

 

[AliGage]

Thanks for the further info...............so each tile comes in at 4.75kg and 8 tiles make just over a sq m2 so 38 kg total for the tiles. Not sure how much you add for adhesive and grout but i guess this has got to be somewhere in the region of 3 to 4kg! Could someone confirm on this.

So following the above comments about wedi, hardibacker etc it seems like this is the best route. Can anyone offer advice on what should be the next cause of action with these plasterboard and skimmed walls..........how is this wedi or hardibacker fixed to the walls. Apologies for all the questions just trying to ensure the job is done using absolute best quality products

You can fix hardiebackers direct to stud work. I believe the 12mm board is what's recommeneded in your scenario.
For your dabbed walls my approach is proberbly different to most. I remove plasterbaord back to brickwork and then construct a timber frame to the wall. I level the wall using wedges and then screw the hardie to the frame as you would with a stud wall. I personally feel i can rely on the mechanically fixed framework more than plasterbaord adhesive. To put hardie over the top of your plastered external wall still require a mechaincal fixing anyway. The frame idea also gives me the option of adding further insulation to the wall.

 

[Diggy]

From memory I think adhesive & grout accounts for 2.5kg/M² .

Diggy

 

[YNWA2012]

Rookery thanks for the comment.............ok this hardie board seems to be the stuff to use and will this be fine for these really heavy tiles? Would having a sand and cement coat applied to the bricks be better than hardie board ? I have a builder who has said best bet is to take all plaster and knock everything back to the brick and he would then apply a sand and cement coat. He said pro tilers really like working straight onto this kind of surface however if the hardi board is better, quicker and just as efficient i would go with this....................any comments?!

 

[YNWA2012]

So it's looking like i need a new tiler in the TW area, Staines, Sunbury, Heathrow, Egham ish area. Anyone out there who is in the local area drop me a PM