Hello, I'm a longtime lurker here but just signed up to get some advice for doing out a luton box.
I must have read most of whats been written about insulating vans and the result has been to confuse rather than inform.
Technical websites that compare the material quality of different insulations talk about XPS, EPS, PIR and PUR.
In the shop, the choice seems to be expensive foam boards with foil on sold under various brand names (which I think are PIR or PUR based?), cheaper slabs of polystryene (possibly E- or X- PS?), and good old nasty old rockwool.
My current van is insulated with rockwool that's been in there since the 70's. I say insulated -- the rockwool is good as new in half the van, but anywhere that rain has sneaked in it's a sodden mess. A-okay with the burner going, but crap when it goes out at 4am...
Part of the reason I'm doing out a new van is that this one is going to be snug as anything
So I guess my question is, what of these polysterene boards? Has anyone given them a go? How do they compare in terms of insulation to the more expensive foam ones? And how does the foam or the polysterene stand up to moisture?
Pricy foam boards: http://www.wickes.co.uk/Celote…rd-1200-x-2400mm/p/190545
Cheap old polysterene: http://www.wickes.co.uk/Wickes…mm/p/210823#prodReviewTab