Vapor barrier under chipboard flooring?

[Färdigrenoverad]

Insulating the floor structure with cellulose fiber. Added a vapor barrier before I will now lay chipboard flooring to then self-level for underfloor heating, then tiles/stone on top. This means I can't glue the chipboard to the joists. Should I rather skip the vapor barrier?

Will floor screws work or does it "have to" be chipboard screws?

 

[lärjungen]

Insulating the floor joists with cellulose fiber. Laid a vapor barrier before I now plan to lay a chipboard floor to then self-level for underfloor heating followed by tile/stone on top. This means I can't glue the chipboard to the joists. Should I rather skip the vapor barrier?

Does it work with floor screws or "must" it be chipboard screws?

Facing the same dilemma. How did you do it?