I have been doing a job with some 600 x 300 on walls and floors. Tiles have been fixed to concrete floor and plasterboard walls. The tiles when fixed had been nice and flat and came in the next day and the floor is like a bloody skateboard park as are the walls and i know i never fixed like that.

adhesive used was stuff from a place called tile master. ( bagged stuff ) standered set walls and rapid set floors

did you use tubbed

What adhesive was it, spf etc

Originally Posted by whitebeam

What adhesive was it, spf etc

none of it was flex just standered set and rapid set normal cement based

The tiles were they ceramic or porcelain

Originally Posted by whitebeam

The tiles were they ceramic or porcelain

12mm ceramic square edge to so it feels bad when you run hand over the wall now

I use a spf as standard nowadays, are the tiles hollow or loose in any way

Originally Posted by whitebeam

I use a spf as standard nowadays, are the tiles hollow or loose in any way

Tiles are solid and when tapped sound solid there is no noises to suggest there are voids behind them.

Standard set for 600x300 on the walls you may find has sucked back into the plasterboard causing the lippage. Lot depends on amount of adhesive used and was it broken bond pattern.
Some larger format tiles can be bowed - did you have good lighting in the room when you tiled it.

[QUOTE=timeless john;357544]Standard set for 600x300 on the walls you may find has sucked back into the plasterboard causing the lippage. Lot depends on amount of adhesive used and was it broken bond pattern.
Some larger format tiles can be bowed - did you have good lighting in the room when you tiled it.[/QUOTE


Room was really light and was straight pattern it has really done my head in

if you have had to pack the tiles slightly at different rates to each other then they could have sucked back into the substrate at different rates as john has said. this causing some lippage.

slc on the floor or just concrete

any pictures please, were the walls solid or was there a lot of bounce in the walls

Mixing to wet can cause slumpage as the adhesive dries...

Also, if you peg the tiles as opposed to putting the spacer in properly could cause the tile to move if you pull it out when still slightly wet.

has someone "vandalised" the work?

only reason I ask is that I has a case I was involved in a while ago where the flooring contractor had laid vynil coverings and the following day when he came back they were all rucked up as if they had not stuck. I was called in to have a look as it was on my screed. Some savvy investigation led me to the conclusion that the client had been in overnight and pulled the coverings up. His reason was never exactly clear but I felt that he beleived that if he complained he would be able to get the flooring contractor to replace the floors and get it all for free.....call me a synic if you like but the construction industry is full of rum characters.....

Originally Posted by Dave

Mixing to wet can cause slumpage as the adhesive dries...

Mix was a good thick mix not to wet and i just cant understand it.

no pics as not back at the job till next week now. the contractor may be able to accept it but i am still not happy as its my name to it. never using the adhesive again and the floor was slc but it was the same on walls and floors and the walls were solid.

Originally Posted by michaelb4348

Mix was a good thick mix not to wet and i just cant understand it.

If you use an adhesive bed that is above the recommended thickness then the adhesive can shrink as it dries.. this might be the cause of the small lipping.. If you have to bed above the usual 6mm final bed depth then it is wise to use a thick bed adhesive..

the same thing happened to me a couple of years ago when i just started out job was fine then next day lips everywere i put it down to wrong trowel depth and mixture was not stiff enough i now try to use same addy i like to mix it a lot stiffer like toothpaste now. Not had that poblem ever again we learn by are mistakes and how not to go there again!

Originally Posted by garretridge

the same thing happened to me a couple of years ago when i just started out job was fine then next day lips everywere i put it down to wrong trowel depth and mixture was not stiff enough i now try to use same addy i like to mix it a lot stiffer like toothpaste now. Not had that poblem ever again we learn by are mistakes and how not to go there again!

I have never had a problem until this adhesive which is one i have never used befor and will never use again.

just check the slc is still bonded when you lift tiles