Does window film keep the cold out?

I see nothing wrong with using the film as a multi-year temporary solution for windows that don't open.

The longer-term solution is new windows, but if that's not in the cards for a few years why not just leave the film up?

Chris

I don't see the connection. And no I don't use boxes for end tables, and I don't keep the film on over the summer. By using the 3M film kit and the tape that comes with it, I can peel the tape off just fine after a few months. 3M is right - the difference is in the tape, as they say on the box.

Helps, a lot. Window film comes in clear, so you can have light. atach the film on the window frame, so there is a dead air space between the film and the window.

When we lived in the frozen north, the windows leaked something awful and worse, they provided minimal insulation.

I wanted to put up plastic film on the windows to minimize the drafts during the eternal bitter cold winters but my SO thought it was look cheap & cheesy.

This was my solution:

They did a terrific job. When I did open the shutters from time to time, the inside of the windows were coated with a thick layer of ice (meaning the heat from the room wasn't escaping).

Now that we live in the blistering hot south, I wish I could build them again to keep the heat out but the studs are only 4" thick. Not deep enough to install shutters.