Cork boards for soundproof and thermal insulation

[laurent]

Hello, the noise of an heavy rain on the roof in thin plywood tranform the hull in a big drum and my head also after half an hour . I have to use ears plug . I am looking for some insulation. I cant use something to thick because it is already very narrow . 1 cm is the maximum i can tolerate but is it enough?
I am thinking of cork board or cork sheet more flexible but thinner max 0.6 mm. There is also cork paint whish goes everywhere but not so efficient as soundproof ,needs a compressor for application.
And why not the biggest density of cork sheet directly stick on the flat outside exterior roof of each cabin, ( forbidden for hight heels and drop of anchor...) and you walk on souple carpet of cork ?

[Robert Sheridan]

You can get cork cut into squares about an inch square and mounted on a scrim which makes it flexible.  We used it for the core of the laminated roof of our pod.

[Chris Bretter]

Hi has anyone used phenolitic foam to heat insulate the cabins.its very easy to work with and covered in vinyl quite durable i think.it comes with a thin ally backing which would need to be covered. perhaps vinyl or canvas glued on both side sand held in place with velcro . it is quite light and can be cut with a box cutter or blade. Chris