I bought the 3M Window Weld and I am gonna go give it a try right now (if I can avoid playing online poker instead). I live in Dallas and the rear window of my 05' roadster starting to come off about a month ago. It is only about 1/4 of the way peeled off on the drivers side from what I can tell.

My dealer said that they could replace the entire top for $250, but I figure I will give this a try first. If it does not hold, then I can have them replace it later.

It is currently 65 degrees here in Dallas, so hopefully that is not too cold for this repair.