Vapour barrier needed for laminate on suspended floor?

[Djomidlands]

Hi, I’m going to lay some 12mm herringbone laminate in my hall way and I’ve got either some arbiton Fan-folded Sprint Laminate underlay or green wood fibre type in the house that I can use. Neither has vapour barrier properties. Do I need to worry about buying a vapour barrier or not. Floor is suspended tongue and grove, approx 30 years old. Picture of crawl space beneath also attached. Thanks!

 

[Wayners]

Not my area but I did. Moisture form under could effect laminate.
Foil underlay or plastic will stop any trouble