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Discussion Starter · #1 ·
My impression has been that the car is hotter when getting in than my old Passat. Touching the glass roof shade seemed hot. So I measured. Outside temperature a pleasant 75. Temperature of outside surface of glass roof was 142! Temperature of the inside shade was 138, so it is not doing much of anything to insulate. Temperature of shaded light gray seat was 118. I wish I had a solid roof.
 

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Glacier White/Lunar Grey 1st Edition with 19" Wheels
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Would be interesting to compare to a Pro model with the steel roof. Cars get hot when they sit in the sun regardless of their roof situation, but the delta between glass with the shade pulled and steel roof seems to be the relevant number here.
 

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Discussion Starter · #3 ·
Would be interesting to compare to a Pro model with the steel roof. Cars get hot when they sit in the sun regardless of their roof situation, but the delta between glass with the shade pulled and steel roof seems to be the relevant number here.
I'm also curious as to how cars like Mach-e and Model Y perform in comparison. I had assumed, naively it seems, that the roof shade on the ID.4 would do more than it does.
 

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I'm also curious as to how cars like Mach-e and Model Y perform in comparison. I had assumed, naively it seems, that the roof shade on the ID.4 would do more than it does.
I think the key is differentiating between radiation and conduction. All surfaces will heat up in the sun and therefore the glass is getting hot. The shade is shielding from the sun's radiation, so to some degree it's helpful over not having it. But like some have said above, it would be nice to compare with other models or versions of the ID.4 and check that delta out.
 

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ID.4 Pro S Gradient AWD pre-ordered 9/23/2020
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While I don't have any temperature readings, this seems pretty typical for a vehicle with a panoramic glass roof, at least the few I've had with panoramic glass roofs.
 

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I've noticed some heat as well on warm days. I'm close to getting the roof glass tinted with some ceramic film. Don't really need any shading, just the ceramic. The stuff did wonders for the side windows.
 

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2021 ID.4 First Edition / Dusk Blue
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I've noticed some heat as well on warm days. I'm close to getting the roof glass tinted with some ceramic film. Don't really need any shading, just the ceramic. The stuff did wonders for the side windows.
I’ve been thinking about tinting the roof glass as well; I’m in the mid-Atlantic, and have virtually no shade with urban street parking. Does anyone have experience with tinting a sunroof? Just wondering if it makes much of a difference, given the windshield will always be a conductor (I intend to tint all other windows, but the shop doesn’t yet have the ID.4 templates).
 

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I got a couple of quotes this week for front end PPF and (clear) ceramic IR-blocking film on the roof. The PPF quotes were within $5 of each other, right at the $2K mark, which my wife balked at. Roof film ranged from $200 (this was a pretty cursory cut-and-paste email quote and they may not have checked to see how big the glass actually is) to $580. Given how much heat we're feeling from above already (even with the shade closed), and knowing that we'll be driving to Florida in a month, that part might be worth it. The week got busy so we haven't really discussed it properly yet.

Wherever we take it, it sounds like we would be their first ID.4.
 

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I'm also curious as to how cars like Mach-e and Model Y perform in comparison. I had assumed, naively it seems, that the roof shade on the ID.4 would do more than it does.
Tesla is hotter than ID4 and definitely needs some after market fix.
Mach E doesn't have a screen but the glass is more tinted and not as hot.
I find most of the heat coming from the windshield too and thinking of getting a tint on the top edge to help
 
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