Easy way to remove window film (tinting) from the Avion side windows

Some of the windows on the trailer have the tinted film just like what is applied to car windows.  I assume this is to reduce the UV rays coming into the trailer.

Someone either didn't do a great job installing it, or time just caused the film to draw up.  So, it needed to be removed.  I probably won't replace it - the windows will be covered by two layers of nice curtains....

Here is the window in place - you can see the defect of the upper window. 

All the goop on both the window and the frame has to be removed....this is Butyl tape in case you're interested - it comes off nicely with Xylene....a slow evaporating solvent.

The red arrow shows the defect - there is a big air bubble here.  You can see it from the outside, so it needs to go!   The trick to easy removal is the clothes steamer pictured at the top of the photo.

Absolutely do not get a razor blade anywhere near the window!  That was my first thought, but I read about this trick and it's fabulous!  (A razor blade will just cut off some of the film, leaving the nasty glue - and a big job to get it all off chemically!)

The idea is just to steam it off - the steam heats up the film and the underlying glue.  It releases all at once from the glass.  Absolutely no residue if you do it slowly enough.   

And there you have it - the film is all in one piece and the window just needed some Windex to be crystal clear!