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Old 01-15-2015, 06:28 AM   #5
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Join Date: Oct 2007
Posts: 22,316
we'd like to eventually upgrade to dual-pane windows.

Unless they are custom built most dual pane windows only stop outside noise.

To work as insulation they must have the air evacuated and replaced .

The cheap plastic is a PIA but at 1/1000 the cost , ,,,,,,,
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