Poppy
Is it important to put a vapour barrier in place?
sparrks
Very!
sparrks
You want to avoid all vapour from cooking, wet clothing, breathing etc from reaching the inside of the external paneling thus avoiding condensation and later corrosion.
Poppy
sorted then 
Cheers love
Cheers love
hextal
For the extra few quid it cost and the wee bit more effort i put one in.
ellisboy
It depends on what type of insulation your using.With Kingspan type insulation it's not nessesary as its foil backed both sides.If your using wool type then yes.
hextal
I found that you end up with the odd gaps here and there due to the general van shape/ribs/arches etc which I filled with spay foam. As the single can spray foam is open cell (porous) then I figured i'd belt and brace it.