Hollow Sounds and Space under edge of tiles?

[Andy Allen]

Seriously..... There's no way I would agreed to that either...
Do your homework.... Choose the right tradesmen and if your that concerned take a day off and keep an eye on them.

 

[Andy Allen]

Would seriously question the legality of it...

 

[Chris101]

The idea of the filming and suggestion actually came from the construction company themselves.
Their website has a video clip of a 2 story extension going up and when discussing the project with them and our past, they said 'you are more than welcome to record the job as well'....

 

[Flintstone]

filming aside. He's not doing a good job. Cosmetically perhaps yes it might end up looking good, but the essentials aren't good. I'm certain you could lift a tile very easily

 

[Chris101]

Thank you for all your responses.
Going forward, what would you advise we do?

Should we have a self levelling compound and decoupling membrane installed?
The contract does state a decoupling membrane should have been put down however this clearly is not the case...

I am also not sure if the decoupling membrane does anything to level the floor?

The concrete, wet underfloor pipes and screed on top was all laid 1 month ago.

 

[Albert]

How thick was the concrete and has the heating been commissioned

 

[Chris101]

How thick was the concrete and has the heating been commissioned

Not sure as the contracted initially stated a new block and beam suspended floor but it was only when the builders were on site they decided on the concrete option.

The heating has been commissioned although they had to make a few visits to rectify issues with the heating coming on and then not switching off via thermostat.

 

[Flintstone]

Drying times before tiling can commence is 1 day per 1mm thickness upto 40mm then its 2 days per mm as a guide. How soon after it all going down did they put the heating on ?

 

[Andy Allen]

Did anyone test the screed to see if it was dry.? ..... One month is not long enough unless they force dried it with the ufh.
Are there any cracks in the screed?
If so then a decoupler should of been used.
If the floor isn't level then it should of been leveled either by the builder (joke)
Or by the tiler... Before tiling.
Voids in tiles should be avoided at all costs.

 

[Albert]

Thank you for all your responses.
Going forward, what would you advise we do?

Should we have a self levelling compound and decoupling membrane installed?
The contract does state a decoupling membrane should have been put down however this clearly is not the case...

I am also not sure if the decoupling membrane does anything to level the floor?

The concrete, wet underfloor pipes and screed on top was all laid 1 month ago.

Decoupling membrane will not level the floor, it should have been done with slc

 

[Chris101]

The

Drying times before tiling can commence is 1 day per 1mm thickness upto 40mm then its 2 days per mm. How soon after it all going down did they put the heating on ?

They tested the UFH prior to the screed going down and then again in around a few days once the screed went on top (they were walking on the screed 24hrs after it was put down).

 

[Chris101]

Did anyone test the screed to see if it was dry.? ..... One month is not long enough unless they force dried it with the ufh.
Are there any cracks in the screed?
If so then a decoupler should of been used.
If the floor isn't level then it should of been leveled either by the builder (joke)
Or by the tiler... Before tiling.
Voids in tiles should be avoided at all costs.

No one tested the screed to see if it was dry...
There are 2-3 long cracks within the screed.

How do you think we should now proceed and what needs to be done to rectify?

 

[Albert]

No one tested the screed to see if it was dry...
There are 2-3 long cracks within the screed.

How do you think we should now proceed and what needs to be done to rectify?

Stop the tiler, take up what has been laid,slc, decoupler and retile. In my humble opinion. I may be corrected but thats what i would do

 

[Flintstone]

concrete needs to set slowly to get its strength, often it's covered to retain moisture. Deffinately shouldn't have the heating on straight away. As above, all tiles up, get some moisture tests done and see what your dealing with, once its dry enough, level
It where needed, fit an uncoupler and tile - properly

 

[Martyn Leeds]

Is there more to the story as to why we are questioning everything? Previous form perhaps.
I'm guessing the tiler is an employee of the builder?
'Cos otherwise, any tiler would be seriously questioning the procedures from the builder