Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

glass roof - production change (July 2018)?

gzzn

Member
Aug 7, 2018
9
13
USA
There seems to have been some type of production change with the rear part of the roof. Originally, due to some dichroic reflector effect, the roof gave off an orange color when wet. However, it seems that cars produced after mid July do not have that effect anymore. I'm not sure of the implications of that. Its speculated that the the glass might be missing some IR blocking.

In the pictures below, you can see the change. The red car is a performance model built in July.

Rear Window IR Blocking Coverage 100% --> 66% --> 0% on newest builds.
 

Cirrus MS100D

Supporting Member
Supporting Member
Jul 6, 2017
683
2,065
Pennsylvania, USA
There seems to have been some type of production change with the rear part of the roof. Originally, due to some dichroic reflector effect, the roof gave off an orange color when wet. However, it seems that cars produced after mid July do not have that effect anymore. I'm not sure of the implications of that. Its speculated that the the glass might be missing some IR blocking.

In the pictures below, you can see the change. The red car is a performance model built in July.

Rear Window IR Blocking Coverage 100% --> 66% --> 0% on newest builds.
Are we SURE this isn't an artifact of the photograph/photographer and the angle/light that it's being taken? (Yes, I realize the "top" portion of the glass still shows that reddish glow...)
 

ecarfan

Well-Known Member
Sep 21, 2013
19,458
14,465
West Vancouver, British Columbia
Are we SURE this isn't an artifact of the photograph/photographer and the angle/light that it's being taken?
It’s not an “artifact”. I see that red color every time the roof of my X is wet and the sun is shining on it. It’s the nature of the glass. And my X roof blocks IR just fine.

I have no information regarding whether or not Tesla has changed the Model 3 roof glass since production started last year. But I suspect not.
 

GuyDude

Member
Sep 11, 2017
279
322
Orange County, CA
587D1A17-B485-4152-B12D-BAE2FC19F845.jpeg
Took delivery March 18’ ... my roof has this effect full on! Super cool
 

Marsnaut

Member
Apr 7, 2016
311
282
NYC
In my opinion, both the top and back glass should change color after it rains. This happened to some people even prior to July and they needed to get it fixed if I remember correctly.
 

JPUConn

Active Member
Aug 11, 2014
1,300
663
CT
Even more reason to put a full piece of tint on the back glass on my 3.

Would be great to understand the why behind it and if it’s anything beyond cost.

I’d venture to guess this is another area that was questioned “why are we doing this and do we need to do this” that Elon talks about.
 

novox77

1.21 Gigawatts
Nov 25, 2017
2,213
4,691
NH, MA
oh very interesting. I never knew that originally there was a 100% coverage version. I wonder if that meant the original tinted part also went all the way back. If so, then the 66% coverage design would be intentional to allow more light visibility thru the back.

I now wonder then if they tested the removal of the IR blocking material in the rear glass panel and found that the amount of heat allowed in was negligible. The tint itself might be good enough.

I've also noticed that the side windows block a lot of heat. Especially apparent during morning commute when sun is low on the horizon. With the windows down, I can feel a lot of heat on my face and arms. With window up, I feel hardly anything.
 

plasmo

Member
Mar 12, 2016
457
360
Chicago
I'm picking up my new Model 3 dual motor tomorrow. Will check this out.
I love the red raindrops that show up on the roof of my Model X (as shown on my avatar <--)
 
  • Like
Reactions: Joelgjr

Products we're discussing on TMC...

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top