[Bldg-sim] Window Film Product Claims

[John Aulbach]

Hi Folks:

This has to do with modeling in general.

I have a Window Film manufacturer with a product called Enerlogic VEP35 window film. It is apparently applied to the inside of a window.

The manufacturer claims that this product lowers the U-Value of single pane glass (1/4" or 6 mm) from 1.109 to 0.6. And with no air space between the film and the glass. "Revolutionary new technology"

Has anyone ever run into this product before? Why does this claim sound "too good to be true" ??

Thanks.

John Aulbach
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