Big Green: Existing Window Retrofit

[Green Hornet]

Hello Fellow Greenies:
I have been made aware of a window retrofit product that struck me as  
valuable enough to disseminate to our group.

A large percentage of old housing stock still exists with single pane  
glazing and leaky frames... this product addresses this issue.

The Advanced Energy Panel product (http:// 
www.advancedenergypanels.com/) is two layers of clear polyolefin film  
held in place between an extruded aluminum frame (not thermally  
broken) and attached to the inside rough window opening with clips  
but separated from the wall surface by compressible foam  
weatherstripping.
It is designed to be placed around the interior window opening and  
held in place with (4) or so rotating clips.

This effectively creates an additional two layer air barrier and uses  
an environmentally friendly plastic with properties that inhibit  
condensation (although the frame does not,) and is tested to  
withstand the impact of a 90 mph baseball (although a sharp implement  
cuts plastic easily.)

My sample has been in place for two months and has performed well  
enough for me to recommend it.

Still, I would be happier if the frame was made of non-conductive  
fiberglass but again, I have not had condensation issues with my  
prototype installation and can see through it with good clarity.
And the price is very reasonable for a custom made product.

Does anyone know of a better or equivalent product to use for energy  
retrofits?

Green Regards,

Jonathan M. Miller, architect
FCSI, CCS, CCCA, SCIP, AIA, NCARB
Specification Consultant


ps:	Product questions can be directed to AEP owner, Jim Devine at  
jdevine at windotherm.com 
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