Sunroof tint causes crack?

[docherf]

I had my local shop tint my MS windows, but they would not tint the sunroof. They said it would cause heat to be trapped in the glass and cause it to 'crack or explode'. I hadn't heard of this before. When I looked online, I saw others had received the same warning in the past for other cars. But I've obviously seen many mentions of Tesla owners getting the pano tinted, so curious if this is something to do with older sunroofs or what the deal was. Is this true for modern cars? Anyone know if this a real concern? I'm in Cincinnati area - not exactly the sunniest of places compared to AZ/CA/FL.

 

[Drivin]

I had my roof done at a very high end, experienced tinter (he had a Model X in the shop and a Lambo when I was there). I asked about that and he said he has done it countless times before and never even heard it was an issue - and I live in a sunnier place than Cincinnati.

 

[Caligula]

Id get a second opinion.

 

[CHG-ON]

I would think a metallic or ceramic tint would reflect the heat right back out. Hence the cooler car.

Honestly, that sounds like a big "duh" to me. I guess I could see that with the tints of the 90's. But not now.

You're smart to question it.

 

[brkaus]

I have seen film tinted home windows crack, specifically when exposed to consistent (daily) direct sun that only strikes 1/2 the window.