[Greenbuilding] R20 window insulation?

[Bob Waldrop]

Yes, I apologize if this wasn't clear to start with.  I usually refer to 
them as insulated interior window shutters.

Bob Waldrop

----- Original Message ----- 
From: "Gennaro Brooks-Church" Wait a minute, those are not R20 windows. 
Those are R20 window covers!

Gennaro Brooks-Church

Cell: 1 347 244 3016 USA
www.EcoBrooklyn.com
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