Floating floor on floating floor

[Johnboy54]

Happy New Year to all.
My lounge is 6m x 4m.
Concrete floor with dpm, then 50mm polystyrene, then floating chipboard flooring with glued-joints .
The wife fancies t+g pine flooring on top.
Is this possible?
If so, would it be floating with glued joints, invisible nailed to the chipboard, or glued to the chipboard?
Or just carpet it!
Thanks.
John

 

[WoodYouLike]

Chipboard, especially when it has the standard moist-repellent surface is a pest. You can't fully bond a wooden floor (or anything else) to it, nailing into it is not recommended (not enough grip), so that leaves floating.

And with floating a solid floor some rule of thumb apply. 6 by 4 is a large area, you need at least an expansion gap of 20mm all around.

Better idea would be to switch to wood-engineered floors, much more stable etc.

 

[Johnboy54]

Thank you very much for your reply.
I'll go for engineered.
John

 

[JohnD]

why not pull up that horrible chipboard and burn it?