Laminate floor vapour barrier (1)

[Hozier]

Hi,

I’m laying a vapour barrier on concrete slab before installing underlay fibreboard and laminate.

Is the vapour barrier supposed to be stuck to the plasterboard - say up 1or2 inches? Or should it go under the plasterboard?

I’ve already removed the skirting.

thanks

 

[sxturbo]

No just on the floor, the plasterboard should already have a barrier.