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  #1  
Old 02-27-2014, 05:41 PM
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Heat coming through 14 JGC sunroof.

I have had my 2014 JGC Summit for about two weeks. It was 70 degrees this week and I noticed an inordinate amount of heat radiating through the glass of the sunroof and that light material of the shade into the cabin. We found the lack of ability to shut off the glare in several of the 2014 models that we drove before settling on the Jeep. The MDX and Audi do not have a solid liner that separates the sun from penetrating into the cabin. My 2004 Lexus LS 430 had one and it was nice. Living in the hi-desert I feel that in the summer when temperatures reach 110-112 degrees it will become unbearable. Any fixes on maybe a heavier tinting or some type of insulation that can be placed between the two bodies of the sunroof. Thanks for you help.
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Old 03-03-2014, 01:53 PM
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Re: Heat coming through 14 JGC sunroof.

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Originally Posted by Scott Weldy View Post
Any fixes on maybe a heavier tinting or some type of insulation that can be placed between the two bodies of the sunroof. Thanks for you help.
Check with your local tinting place about the different types of tints they offer. I know when I had it done years ago, metalized tint was the best heat reflector (thin strip of metal invisible to the naked eye which reflects heat). I want to say the new stuff is called infrared tinting. I think the new stuff can cut up to 80% of heat transfer.
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Old 03-03-2014, 08:31 PM
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Re: Heat coming through 14 JGC sunroof.

Thanks BrentWoodKris. I appreciate it.
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Old 03-03-2014, 09:03 PM
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Correct. The heat is radiant and needs to be reflected away to prevent it. If you don't want a permanent tint, a cheap fix would be to cut a section of a reflective windshield dashboard shade to fit the sunroof area and close the sliding shade to hold it in place. I may try this for those 100 degree days this summer.
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Old 03-03-2014, 09:14 PM
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Quote:
Originally Posted by ExcursionDiesel View Post
If you don't want a permanent tint, a cheap fix would be to cut a section of a reflective windshield dashboard shade to fit the sunroof area and close the sliding shade to hold it in place. I may try this for those 100 degree days this summer.
Story time:

Down here there have been reports of side glass shattering, allegedly due to the placement of reflective materials near or against it. I've not read of the reason why it happens in some instances and not in others... but I just thought I'd mention it.

The context is typically 4WD vehicles set up for touring, where the three rearmost windows are covered internally with reflective soft materials to limit heat ingress.

Cheers,
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Old 03-03-2014, 09:52 PM
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Quote:
Originally Posted by Barboots View Post
Story time:

Down here there have been reports of side glass shattering, allegedly due to the placement of reflective materials near or against it. I've not read of the reason why it happens in some instances and not in others... but I just thought I'd mention it.

The context is typically 4WD vehicles set up for touring, where the three rearmost windows are covered internally with reflective soft materials to limit heat ingress.

Cheers,
Steve
Yikes...I'll research this before trying it. I had a sunroof spontaneously explode on my previous vehicle...BOOM! Thanks for the heads up.
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Old 03-03-2014, 10:00 PM
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I think one of the leading theories is to do with the temperatures "rate of rise". It is freaking cold in the Western Australian desert overnight for example, but the sun in the morning has a massive kick to it.

I also gather it's "zone toughened" glass which is vulnerable. This has already been heat stressed in a controlled environment to give it those properties.

Have a read and maybe ask some glass people in your area. It may not be an issue in your particular climate...

Cheers,
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Old 03-03-2014, 10:07 PM
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Quote:
Originally Posted by Barboots View Post
I think one of the leading theories is to do with the temperatures "rate of rise". It is freaking cold in the Western Australian desert overnight for example, but the sun in the morning has a massive kick to it.

I also gather it's "zone toughened" glass which is vulnerable. This has already been heat stressed in a controlled environment to give it those properties.

Have a read and maybe ask some glass people in your area. It may not be an issue in your particular climate...

Cheers,
Steve
If its rate of change, that makes sense. Side glass would be directly exposed to the sun just peeking over the horizon and reflective material would trap the heat and make it heat up rapidly.

Thanks Steve....Cheers!
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Old 03-03-2014, 10:16 PM
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Re: Heat coming through 14 JGC sunroof.

I had my whole pano roof tinted and it helps a lot -- I rarely ever close the shade anymore. But my tint shop guy told me not to use the metal tint because it would really mess with cell phone reception inside the vehicle. Just throwin that out there...
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