On Fri, 15 Jul 2005 02:55:34 -0400, meirman in
response, queried:

In alt.home.repair on Mon, 11 Jul 2005 11:03:08 GMT "Joseph Meehan"
posted:

Films do work, but not nearly as well. They also have two drawbacks.
Even if properly installed they may have problems pealing off, cracking and
may be difficult to remove. They also have been known to crack some windows
due to the heat stress on the windows.

I didn't think to say that these windows are all 12" by 9" panes, I
think it is. Together they are big, but no single one is. Could there
be enough heat stress to crack a window?
My understanding is that double/triple paned windows are the ones, and
film installers will not to install on "thermopane" windows