hallway floor problems

[pritsuk2002]

Hi I live in a council house and we want some flooring in our hallway. We are not sure yet what were gonna have but either be vinyl laminate or tiles. The house currently had tiles in the hallway laid on top of some other small orange tiles. The proper tiles were dipping near entrance and in few other places and sounded hollow when knocked so we told the council that we want to put a new hallway floor but the floor dipps. They were gonna come out and do self levelling now as I mentioned some tiles were loose and I dont want self levelling over the proper tiles the were loose so I lifted them to discover the small orange tiles. Now they never came on the day to do the job so I started to look at orange tiles which were also dipped in the same area also sounded hollow when knocked.

My question is what is causing this?
What's under the orange tiles?
Can self levelling be laid over this and be ok?
What is really needed as we don't want problems in future?

Now I know on this part of forum its not for tiling but I weren't sure if its a tiling issue or ground issue therefore I shall also post in tiling section.

Also I have included a pic of the orange tiles in my hallway any help would be great

Untitled

• pritsuk2002
• 18 May 2015
• 2

Untitled

• pritsuk2002
• 18 May 2015
• 2

 

[dazlight]

They are quarry tiles.
They can stay down if all solid and you can put a self smoothing latex screed over them.
That floor might not have a damp proof membrane under it so that needs investigating too

 

[pritsuk2002]

Think the house is 70 80 yrs old. I agree the quarrys are not solid . Il try lift a quarry to confirm if soil or concrete. Will the dpm be the first thing I see if one is used. What would it look like and where would it be positioned and how deep. Thanks again for your help and advise

 

[dazlight]

I'd say 99% sure it won't have one.
So it's either float a floor on top or

Take up floor an have a new sub concrete sub floor put in.
Take up tiles an have Ashpalt put in
Go over floor with a Screeding compound an liquid DPM

 

[pritsuk2002]

Its a float or floor ontop im not sure what that means im sorry could you explain. Also are the concrete, ashpalt and screed 3 different options I can go to correct it ? How much would it cost roughly the hallway is 4m long and 1.2m wide also the is a small pantry max 1m squared I dont think there is any supply under there or could I be wrong? Also what are the pros and cons of different options also do they last aslong as each other and lastly which is cheaper. Thank you so much for all your help so far

 

[dazlight]

Float a floor is like using laminate

Costing is hard but if I was you I'd get a price off a local flooring shop.