We have 2 gable end windows. They are triangular and split down the middle, so 4 panes. They broke one of the panes when fitting it and replaced it, but the new pane is the other way around. Being loft full height windows, they were specified to be laminated on the inside, they are also Planitherm 4S, so have a solar coating on one pane. As the glass is triangular with no edges the same length, it can't be flipped and needs to be remade. The window fitters claim it's not just ok in the current orientation, but better as the 4mm toughened glass is harder to break than the 6mm laminated, so it's a better way to fit it. They also say it doesn't matter which pane the solar coating is on doesn't matter. Either I'm being fed a lie here, or the world has been fitting laminated glass the wrong way around. I suspect the former. Does anyone have any suggestions, advice or recommended responses?