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-   -   Hardtop Insulation (http://www.jeepforum.com/forum/f96/hardtop-insulation-1097079/)

taoshum 09-02-2010 02:30 PM

Hardtop Insulation
 
5 Attachment(s)
Heaven only knows why the Jeep Designers decided to paint the hardtops BLACK with no insulation. They are very, very effective radiant heaters when the sun is out. So effective, in fact, that the A/C cannot begin to keep up... so I put in some insulation. Thought I'd share the approach:

materials: 3/16" foam core 4'X8'; 1/8" foil insulation from hardware store 4' X 8'; 3M spray on adhesive; velcro adhesive backed.

* cut a panel for each of the front hardtop sections from the foam core board
* taper the edge
* cut a corresponding piece of the foil insulation about 3/4" smaller than the foam core board
* clean surfaces with alcohol
* spray the 3M adhesive on the foil, make sure to use the correct side...
* join the foil to the foam core, let it cure for 45 minutes
* clean again with alcohol and clean the inside of the hardtop
* put velcro on foil in spots where it will adhere to the lowest rib of the hardtop
* press the assembly in place... easier for the front hardtop sections
* cut the back hard top foam core board into two pieces... down the middle works since you cannot install without removing the hard top completely
* repeat for the rear section of the hardtop
* get some white tape to cover the joint if desired.
* enjoy...

mickeymeanie 09-02-2010 02:42 PM

Great idea... looks like a project for me once our Jeep arrives!

Wonder how well the Velcro will hold up once it sits in the heat for a while... those panels you made can't weigh much, so it may be alright. Probably would become a problem if you added any sort of fabric cover which would be added weight.

Thanks for posting this!

I have to wonder if the inside of the 2011 top will be white as well... we are getting the painted top on the Sahara... not likely the interior is painted would be my guess.

taoshum 09-02-2010 02:55 PM

Quote:

Originally Posted by mickeymeanie (Post 10061061)
Great idea... looks like a project for me once our Jeep arrives!

Wonder how well the Velcro will hold up once it sits in the heat for a while... those panels you made can't weigh much, so it may be alright. Probably would become a problem if you added any sort of fabric cover which would be added weight.

Thanks for posting this!

I have to wonder if the inside of the 2011 top will be white as well... we are getting the painted top on the Sahara... not likely the interior is painted would be my guess.

I'll post again if they fall off... so far so good. Interior is white on this one so the white foam core board is a pretty good match, colorwise. With velcro, I can add paint or fabric later if needed but it would be more weight...

WolfgangGullich 09-02-2010 08:53 PM

Does this deaden noise from outside at all too?

taoshum 09-02-2010 10:58 PM

Quote:

Originally Posted by WolfgangGullich (Post 10063206)
Does this deaden noise from outside at all too?

I've only had this installed for 24 hours and haven't had much time to drive around but my initial impression is that "yes", it seems little quieter and it is definitely cooler and the a/c doesn't have to work as much. I had the fan on low and was comfortable where as before, I had the fan on high and it could not keep up.

I'm happy so far and my DW even says that it looks like the "factory" installed it. I don't know about that but it's ok. I think the foil really reflects the heat away from the interior.

Thunderstrike 09-25-2010 08:34 PM

Thanks to Taoshum's DIY project, I finally started on mine. Mike, who owns a four door JK loaned me his hard top front pieces for me to fabricate the insulation. I like the flexibility of having extra pair of hard top panels so I can work inside the house (still tooo hot outside).

I chose 1/2" form insulation from Home Depot.

Here, I am making a pattern using vanilla folders:
http://www.jeepforum.com/gallery/data/4/DSC00700.JPG

Tracing the pattern before cutting:
http://www.jeepforum.com/gallery/data/4/DSC007011.JPG

Insulation has been cut and fitted to roof top panels:
http://www.jeepforum.com/gallery/data/4/DSC007022.JPG

Next step would be to go get foil insulation from lowes tomorrow. I gotta do something about the pink color. I will either glue on roof headliner material or put some white paint on the bottom side...

DenverDan78 09-25-2010 09:32 PM

Or you could get a more powerful AC

Thunderstrike 09-25-2010 10:46 PM

No, gotta insulate. The hot radiating heat from hard/soft top will put you to sleep on a long drive to Moab.


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