To: Berlin_Freeper
Yeah you do need double pane.
The air gap is what keeps the heat or cold out.
12 posted on
10/08/2018 1:35:03 PM PDT by
Harmless Teddy Bear
(Somewhere there's danger, somewhere there's injustice, and somewhere else the tea is getting cold.)
To: Harmless Teddy Bear
You are right, but Berliner is also right — the frames need to be insulating, too.
14 posted on
10/08/2018 1:49:09 PM PDT by
expat2
To: Harmless Teddy Bear
"The air gap is what keeps the heat or cold out. " The gap is a vacuum which does not allow conduction of heat or cold.
16 posted on
10/08/2018 1:54:15 PM PDT by
blam
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