[Bldg-sim] Update on Enerlogic VEP35 SR CDF

[John Aulbach]

Update on Window Film Product:

I DID find the product listed in the NFRC Database. But, as you can see, it only lists one U-Value for each product. Not a Delta U. So I think the product is rated for Shading Coefficient and VT at that particular U-Value.

I also have an email into their Product rating director to confirm my suspicions.

Come, Watson, Come, The game is afoot..

John

From:bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of John Aulbach
Sent: Tuesday, January 15, 2013 3:09 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Window Film Product Claims
 
 
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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