Laying laminate on top of (?)tiles

[lathos]

I'm just preparing to put down laminate on a downstairs hallway. Pulled up the carpet and the Duralay, and found this:

I'm guessing they're ceramic tiles, but they're very thin - about 3mm thick and 9in x 9in in size. It looks like they're stuck down onto the subfloor, which I guess is concrete. (All the walls are concrete construction, so I would not be surprised if the whole frame is.) Only that one is cracked.

Should I pull these up before I put down an underlay for the laminate, or is it OK to put underlay on top? And what underlay would be best in that case?

 

[johnny2007]

They look like fake tiles glued on.
If they're solid, leave them there

 

[dazlight]

They are old vinyl tiles. Looks like magnesite sub floor under them so leave it all down or you meant be spending a lot of money to sort it out.

 

[lathos]

Thanks very much, both - I'm glad I asked. I guess that means I will need to put a damp proof membrane underlay down on top.

 

[dazlight]

Yes mate that’s best. Look at Timbermate excel.