Is it really possible that the color or the film will peel off in 10-20 years?
I rather think there will be long faces then, when the builders have grown tired of the anthracite (we know that the once super hip glass blocks didn’t experience a second spring alongside their contemporaries "platform shoes and bell-bottoms") and they think white is quite nice and timeless too and simply want to remove the films - and then the windows altered under the glue of the film will smile at them in radiant tooth yellow *LOL to the third power*
Windows are, in my opinion, very important and will not be replaced anytime soon... (probably never again).
Therefore, I wouldn't necessarily "save" on them.
My point exactly. The aluminum window factory no longer belongs to me, so nobody needs to file this under sales talk: while aluminum windows still look brand new after forty years, PVC windows become unsightly after only fifteen to twenty years (brittle, still technically harmless, but ugly).
My latest info is that there can be problems with transparency due to optical distortions and stability with quadruple glazing.
To my knowledge, not even with the bulletproof glass of Villa Flick ;-)
Distortions are practically no issue as long as the thicknesses of the panes and the spaces in between are equal (e.g., 4-16-4-16-4). I see no difference in clarity between double and triple glazing. If the middle pane were installed relatively skewed, it would probably become "visible".