Dodo Thermo Van Liner 3M
** Stock Due 28/05/21 **Dodo Thermo Liner is a professional 7mm sound and heat insulation material for a quieter warmer, van, camper or motorhome. Dodo Thermo Liner is a high grade foil lined closed cell foam and is ideal for use on the van sides, floor, roof etc. Dodo Thermo Liner is...
www.deadening.co.uk
Maybe bit more expensive than celotex but will take up less room, and no gaps if fitted properly.
Cheaper versions available that have been used for underfloor heating.