Casting in the water heating hose in self-leveling compound on wooden joists second floor

[roger2011]

Hello,
The thoughts are wandering from grooved chipboards and EPS boards to embedding the underfloor heating coils in self-leveling compound instead.
So, I have a small loft on a part of the house, 30-40 sqm.
Insulated wooden flooring that I'm considering laying waterborne underfloor heating on.
Currently, there is a chipboard floor.
What needs to be done and what to use?
Prime the floor? Moisture barrier? The room will be used as a regular room, not a bathroom or anything like that.
Reinforcement mesh attached to the floor? - material thickness?
12 mm coils? attached to the mesh? or special plastic holders for it?
Self-leveling compound - fiber leveling?
How high above the heating coils should it be/must it be/should it be self-leveling compound?
I want to achieve a floor that is as low as possible but at the same time shouldn't crack...
On top, parquet flooring.

 

[Stefan1972]

Why putty at all? You have a wooden floor. Use products that are made for it and let it stay at that.

 

[roger2011]

Hi Stefan1972, got that advice from the plumber. Maybe he earns more then?
Thanks for the answer.

 

[Stefan1972]

Yeah, I don't know, I'm not an expert. It just feels silly to start slapping and casting on a wooden joist if there's no reason.

 

[corre]

Create a classic subfloor with sparse paneling and sheet metal or grooved floor chipboard. Simple and quick to work with.

http://www.lksystems.se/sv/produkter/lk-golvvarme/om-lk-golvvarme/vara-golvvarmesystem/