Please what should i do with my tiled floor

[actionjackson]

Hi all,

Here goes, i live on the first floor (flat) of a new build (5 yrs ago) converted granary. My bathroom is ceramic tiled and over the last 2 yrs a number of tiles have started to crack.

I decided to contact the developers to find out what the floor I'm made up from and It turns out i have an acoustic floating floor sitting on top of T&G chipboard which is screwed to the joists. The acoustic layer is bonded together and consists of (starting at the bottom) -

- acoustic foam
-17mm floating plywood on top of chipboard floor
- 17mm Tounge and Groove on top of plywood
- Tiles

At the edges of the room you can feel movement but the middle feels solid.

So before i pay someone to lay my expensive new tiles and possibly UFH, what should be done to stop this happening again?

I'm loosing heart with this as i have called so many companies now and still haven't been told what i should do - only being told why this is no good!

Can i simply screw down this acoustic layer and lay tiles on top, accepting we will possibly loose the sound proofing properties?

All advice welcome and thanks in advance.

 

[foxhole]

- acoustic foam
-17mm floating plywood on top of chipboard floor
- 17mm Tounge and Groove on top of plywood
- Tiles

So how thick is the chipboard?
Never seen 17mm sheet timber, are you sure about that?
No one puts t&g boards onto ply to tile over, only the other ways round.

 

[actionjackson]

- acoustic foam
-17mm floating plywood on top of chipboard floor
- 17mm Tounge and Groove on top of plywood
- Tiles

So how thick is the chipboard?
Never seen 17mm sheet timber, are you sure about that?
No one puts t&g boards onto ply to tile over, only the other ways round.

Hi Foxhole,

Not sure how thick the chipboard floor is without pulling it up.
The ply is approx 17mm, i have measured in situ and its pratically the same thickness as the T&G chipboard that is bonded on top.


I agree it seems the wrong way round. What should i do?

 

[tictic]

- acoustic foam
-17mm floating plywood on top of chipboard floor
- 17mm Tounge and Groove on top of plywood
- Tiles

So how thick is the chipboard?
Never seen 17mm sheet timber, are you sure about that?
No one puts t&g boards onto ply to tile over, only the other ways round.

Hi Foxhole,

Not sure how thick the chipboard floor is without pulling it up.
The ply is approx 17mm, i have measured in situ and its pratically the same thickness as the T&G chipboard that is bonded on top.


I agree it seems the wrong way round. What should i do?

floating floor...not good for tiling..but...a big..BUT!!!!

ok.. i would look into using a uncoupling membrane(ditra)...but...that floor would need to be "deflection" free for a start.
lift exsisting tiles and get the substrate screwed down, then ditra...


check out the link....
http://www.schluter.co.uk/produkt.aspx?doc=6-1-ditra.xml&pg=funktion

i would call their tech line ..FIRST.. before procceding any further first.

 

[tictic]

when you do speak to them...can you let me know what the outcome is mate....interested to see what they say...
cheers tictic.

 

[actionjackson]

- acoustic foam
-17mm floating plywood on top of chipboard floor
- 17mm Tounge and Groove on top of plywood
- Tiles

So how thick is the chipboard?
Never seen 17mm sheet timber, are you sure about that?
No one puts t&g boards onto ply to tile over, only the other ways round.

Hi Foxhole,

Not sure how thick the chipboard floor is without pulling it up.
The ply is approx 17mm, i have measured in situ and its pratically the same thickness as the T&G chipboard that is bonded on top.


I agree it seems the wrong way round. What should i do?

floating floor...not good for tiling..but...a big..BUT!!!!

ok.. i would look into using a uncoupling membrane(ditra)...but...that floor would need to be "deflection" free for a start.
lift exsisting tiles and get the substrate screwed down, then ditra...


check out the link....
http://www.schluter.co.uk/produkt.aspx?doc=6-1-ditra.xml&pg=funktion

i would call their tech line ..FIRST.. before procceding any further first.

thanks for the info. Couple of questions - what impact will screwing down the floating acoustic layer have on its ability to do its acoustic job?

I would like to use this opertunity to install the cable type electric underfloor heating and would need to keep the same floor height as i have at the moment. I have been give enough 10mm Marmox boards to cover the bathroom floor so would like to use these if suitable.

Of course i will let you know how i get on once i bite the bullet and start.