conservatory floor advice

[Philcool]

Hi looking for some advice about my floor in my conservatory !!

I am looking to lay 4inch of kingspan insulation board on top of
my concrete floor in the conservatory ?? can I lay a laminate floor
stright on top of the kingspan ???? or do I need to fasten timbers down
to my concrete floor put the insulation between and board on top before laying the laminate ??
Tahnks Phil

 

[noseall]

You can float some 18mm ply or t&g chipboard on top of the kingspan then fit your laminate to this.