Polystyrene suspended floor

[robbieraven]

Hi all,

Try and keep this short, new build garden room with concrete screed is joining up to an existing kitchen. Kitchen is currently Amtico, ripped up to reveal, 6mm ply, then 22mm chipboard and then polystyrene and then concrete, does anybody know anything about polystyrene suspended floors? I wondered if there are likely to be battens/joists or does the chipboard just float on the polystyrene? Not come across one of these before, was planning to 6mm Hardiebacker the chipboard to prep it but I'd like to know a bit more about the polystyrene base? Is it tileable?

Cheers Rob

 

[Ajax123]

chipboard floats hence the term floating floor. most are not tileable without lots of work underneath. EPS 70 is the usual insulation used and it is too spongy for tiling onto.

 

[Dumbo]

Just don't Tile it . It's not worth the hassle

 

[widler]

Ive screwed through with concrete screws before now , hardie on top then tiled .
Don't see the problem as long as it's solid , oh and there's no like mains gas water or electric underneath