The solar protection film that is added to windows is a very cost effective way of reducing heat (and light as well -- if you like) in the summer and is certainly removable and replaceable, but should not to be compared to the simplicity of dressing in the morning and then undressing again that evening.

What we meant by removable was that after the material had deteriorated from use (two to ten years), that it could be removed and then replaced (or not replaced). Removal is easier to do now than it once has been in the past. The window film industry is only about 25 years young, and we're just now seeing products that aren't so susceptible to scratching, deterioration and techniques have been developed that can be relied upon to remove the film without damage to the glass onto which it is affixed.

Window films are made of acetate (plastic sheeting) and aluminum particles. The sun will eventually discolor and break down the plastic and aluminum to a point where the film is no longer effective and where it looks bad as well (it discolors, splits and peels). Hence, removability is very important. That's what we were talking about on our radio program.

The do-it-yourself kits do not include the commercial grade thickness films which last longer and come with a better warranty. If you can afford the extra cost of having the material professionally installed do so. Product information we have studied leads us to believe that this is where you really get the best bang for your buck.