Originally Posted by AZfocus2012
Another reason why I special ordered my SEL without a sunroof. All of the high trim level Foci in the area all had sunroofs/rattle traps/potential water leaks, and now exploding roofs that the warranty won't cover. Since a lot of the problem seemed to be in the cold climate areas, I would offer up temperature differential as a cause. If it is really warm on one side of the glass and sub zero on the other, I could see some shattering. I bet the sunroof is not made to the same specs as the windshield, if it was it probably wouldn't be shattering.
One of the main reasons I ordered my 2012 Ti HB was so I could avoid a sunroof. Almost all upscale models on every car lot have sunroofs so you pretty much have to order to avoid getting one.
I've had sunroofs in most of the cars I've owned but never really used them much so why pay extra for it and run the risk of problems down the road. In addition, a sunroof adds weight in the worst possible location, up high, lowers headroom and also weakens the roofline a tad.