The freedom tops are hollow, but the rest of the hardtop is solid, with no air space to utilize expanding foam

JIMBO

 

The back of top the around the glass has a large space for foam i think this reduced some of the road noise also .

 

great write up! i use the soft top all summer, but this is a great idea! might do it for insulation in the winter time

never again will i bitch about how hot it is in ky

 

I really like the insulation- but can you drive with the front panels off without the wind jacking-up (messing-up) the insulation/headliner?

 

Yea no problem everything is stuck together tight.

 

i have been thinking about this and rhino liner. why not just spray an actual foam insulator into the top, then sand it to shape/smooth, then apply a finish (carpet or something).

or in the case of rhino liner just put a foam spray then sand then liner.

 

Maybe I missed it, but what kind of coating did you use on the exterior of the roof?
Thanksa.

 

where would the radiant heat foil need to go? i don't think it would work to have that then spray on foam.

i think the insulation would be enough if i used polyurethane. and I'm not gonna foil the tub if i sprayed it.

 

I just used hammered silver paint in a buzz can. Krylon ultimate i got it at Lowes said it stuck to plastic .

 

FWIW, Personally, Ill try painting the roof first and see how it does then if I want, I can always add the interior.
But then thats just my line of thinking.
I would like to thank the OP for the info.
He's stating what he did and worked for him.