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cracked roof glass - repair or wait? long drive to SC...

KootenayEV

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Hey forumites, in March we had an unfortunate incident with a teenager yanking a metal bottle out of the rear cupholder (wow that thing is grippy!) and smashing into the ceiling glass. It made a large impact zone in the outside pane of glass (much like what you would see on a windshield from a large rock), while the inside pane is intact. Over the summer & fall it has grown cracks originating from the impact zone that cross the entire ceiling glass in all directions except to the front edge. If I lived close to a service centre, I would just get it replaced, but the nearest one is a 8 hour drive from me.

I am trying to decide between:
a) Leave it for the winter, and get it replaced in the spring when I'm planning a trip to the city anyways
b) Replace it before the winter and make a dedicated trip to the SC

As the weather has cooled down with recent light freezing, I've heard the roof kind of 'creaking' occasionally as I drive. I'd rather just leave it and do it in the spring, but am wondering about two things:
1) Are there safety implications by having that many cracks running across the ceiling glass?
2) Am I risking other potential damage to the truck by leaving it?

As far as #1, I'm not really that concerned about the roof glass - it has the plastic film in between the two layers and the lower layer is fine. In a roll-over, the metal is doing all of the crush prevention, but perhaps a slight increased risk of something intruding into the cabin? It isn't clear to me how much of the strength of the glass assembly relies on both panes being intact or not. Any windshield engineers on the forum?

For #2, I suspect the seal around the glass is on the bottom pane, and so long as the film and lower glass aren't compromised, water shouldn't intrude into the cabin.
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Nixapatfan

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It should be fine this didn't leak for several months, though not in winter so can't say for sure how freeze/thaw cycles will play into it.

Rivian R1T R1S cracked roof glass - repair or wait? long drive to SC... 20240815_143113
 

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I bet it will be ok till Spring as long as you don't allow any teenagers near your truck again.
 

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I bet it will be ok till Spring as long as you don't allow any teenagers near your truck again.
Or Kim Javas.

For the record, this is what I did to the roof glass on our R1S. The lamination wasn't punctured or broken, and it didn't leak from rain at all. Both sides of the glass were quite broken.

I'd probably suggest putting some gaffer tape or similar on the unbroken side where the impact starts from to help hold it together. I didn't have an unbroken side.

Rivian R1T R1S cracked roof glass - repair or wait? long drive to SC... 1760991195128-dq


Rivian R1T R1S cracked roof glass - repair or wait? long drive to SC... 1760991204729-es
 

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If it's me the quick solve would be to get a roll of clear PPF and put it on top. It won't look any worse, is reasonably inexpensive and even if you flub the job badly and have a few wrinkles who cares because the whole panel will get replaced soon enough.

Benefit is no water intrusion into the micro-cracks which, if it freezes, could cause it to start chunking apart.
 

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COdogman

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KootenayEV

KootenayEV

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It should be fine this didn't leak for several months, though not in winter so can't say for sure how freeze/thaw cycles will play into it.

20240815_143113.webp
Oof, that's a doozy!! My "impact" zone doesn't look as bad, but the cracks have propagated out just as much.
 
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KootenayEV

KootenayEV

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I bet it will be ok till Spring as long as you don't allow any teenagers near your truck again.
Believe it or not, I'm teaching my 16 year old HOW TO DRIVE in my beloved truck! My rationale is that while he has his "L" (a type of learning licence in BC), he doesn't cost extra... at least not for the "if you don't crash it" part of the insurance. Once he passes his "L" test and gets an "N" (new driver, which he needs to keep for >1 yr before doing another test), insurance rate would be very expensive. I want him to have some context of driving different vehicles (his "daily learner" is a Model 3) and to teach him how to tow a small utility trailer before unleashing him on the broader world.
 

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KootenayEV

KootenayEV

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Or Kim Javas.

For the record, this is what I did to the roof glass on our R1S. The lamination wasn't punctured or broken, and it didn't leak from rain at all. Both sides of the glass were quite broken.

I'd probably suggest putting some gaffer tape or similar on the unbroken side where the impact starts from to help hold it together. I didn't have an unbroken side.

1760991195128-dq.webp


1760991204729-es.webp
Wow what caused that?! A high-heel from someone dancing on the roof?
 

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COdogman

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Believe it or not, I'm teaching my 16 year old HOW TO DRIVE in my beloved truck! My rationale is that while he has his "L" (a type of learning licence in BC), he doesn't cost extra... at least not for the "if you don't crash it" part of the insurance. Once he passes his "L" test and gets an "N" (new driver, which he needs to keep for >1 yr before doing another test), insurance rate would be very expensive. I want him to have some context of driving different vehicles (his "daily learner" is a Model 3) and to teach him how to tow a small utility trailer before unleashing him on the broader world.
I appreciate you trying to teach him well - we were all that age once and learning to drive. Still, if you wouldn't mind sending me a warning message if he ever crosses into Colorado territory, I would sure appreciate it!
 

MountainBikeDude

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Believe it or not, I'm teaching my 16 year old HOW TO DRIVE in my beloved truck! My rationale is that while he has his "L" (a type of learning licence in BC), he doesn't cost extra... at least not for the "if you don't crash it" part of the insurance. Once he passes his "L" test and gets an "N" (new driver, which he needs to keep for >1 yr before doing another test), insurance rate would be very expensive. I want him to have some context of driving different vehicles (his "daily learner" is a Model 3) and to teach him how to tow a small utility trailer before unleashing him on the broader world.
Stupid gradated licensing program. They introduced it the year before I turned 16.

Older friends had full license in 30 days, I was stuck with an "L" and a licensed passenger for 6 months, and then limited to 3 people total in a vehicle for 18 months with an "N" before I cold get my class 5.
 
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KootenayEV

KootenayEV

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Stupid gradated licensing program. They introduced it the year before I turned 16.

Older friends had full license in 30 days, I was stuck with an "L" and a licensed passenger for 6 months, and then limited to 3 people total in a vehicle for 18 months with an "N" before I cold get my class 5.
You are on the same side of the divide as my 1 year younger brother! I had a full licence at 16 years plus a few months, he was 18!
 

MountainBikeDude

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You are on the same side of the divide as my 1 year younger brother! I had a full licence at 16 years plus a few months, he was 18!
I thought having friends that could drive was annoying, that would have been torture for him.
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