Are you for -or- against stuffing the roof structure with insulation? Looking at all that hollow structure up there makes me think it could help it be a bit cooler in summer and maybe a little quieter. Also, is there a material I could stick on (etc.) to use as an extra layer of insulation on the "flat" parts of the roof inside?

 

Are you talking between the roof and the headliner? There are some sound berrier insulation that people put in hotrods to help dampen the noise from the firewall and on the floor panels but I am not sure if it is thin enough to go where you are talking about and still have the headliner hold in place. Google it. Here is just one of the links.


http://www.lobucrod.com/

 

Thanks for the link.
Yeah talking about both a thin layer adhered to the flat part of the roof and also about stuffing fiberglass, etc. up inside the hollow tubular areas that run down the middle and each side.

 

ive heard dynamat and foam insulation work well.
foam would be for all the hollow spaces and dynamat would work for the floor, roof, ect.

 

Ordered some of the automotive insulation from Harbour Supply @ lobucrod.com.
Man, there's a lot of road noise without a headliner or interior trim panels!
I'll let you know how it turns out. The testimonials of this product were good.

 

I have installed some of the insulation from Harbour Supply (Dallas area) @ lobucrod.com on the roof and up inside the structural roof areas. The product is working very well so far. It is very lightweight, durable, and easy to work with. I used headliner 3M adhesive on the flat roof panels and seems to be holding very well. I cut a seam on each side to facilitate sliding the insulation up between the flat roof and structural members. Their tape is way better than the foil tape I'm used to. It is very sticky and flexible (unlike the regular foil tape). Next will be the rear section of the roof structure, the side columns up to the roof, then a couple of layers on the floor and trunk area. I'll try to get firewall if I can reach much of it without major disassembly. Door panels, if I feel ambitious. So just an update. It's working very well.

I recovered my headliner with automotive headliner material from JoAnn Fabrics about $25 and 3M headliner adhesive (two cans) at $13 per can. Also worked well. Fabric followed contours of headliner board very well. Cost a lot less than the $189 new covered board (plus $60 shipping).

I'll post some photos when I get it all done.

 

Good to hear it all is working well.