maybe a new product: wool?
https://havelockwool.com/van-insulation-products/?fbclid=IwAR3SGDaLfwZGxPldEPYIVQNykMANLdCir_Pk7NFHj16KmMsORs3GY-9_O_8#

Karl.

On Wed, Mar 10, 2021 at 9:10 PM Eric Caron <ericcaron96@comcast.net> wrote:

> I admit it.  I have the worst stuff currently in my van.  It is house
> fiberglass insulation.
>
>         so far it has remained dry to my knowledge and I added it on top
> of what was in the van.
>
> I have wanted to get something better but just have not read about
> anything that really sounded worth the effort.
>
> I’d love to find something that helps with heat transfer, sound, and
> doesn’t hold moisture.  Light weight would be great.
>
> So, has there been a new development out there or have I missed a product?
>
> Eric Caron