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Old 09-27-11, 09:14 AM   #1
Lex Parsimoniae
 
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Default Indoor window thermal barrier (indoor storms)

I was looking at these double pane indoor inserts. Here:
Guy Marsden - insulating windows



I really like the design. But then, I saw these..

Window Insulation, Storm and Replacements windows



That looks like the idea way to make some good insulation..
So, since it's unlikely they have that kind of aluminum at Home Depot, could one use what they do have in stock??
White, 60 in. x 5/16 In., Screen Kit-7025203010 at The Home Depot


Then, it came to me.. Buy Two screen kits and bolt them together, back-to-back!

You need to get some film that will stay in the grooves, using the kit's spline.

I need to check this stuff out..
http://www.homedepot.com/h_d1/N-5yc1...atalogId=10053

This idea just might work better than the fancy one above, since the air-gap would likely be 2X larger!

Comments please.

Cheers,
Rich


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Old 09-27-11, 09:29 AM   #2
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I larger air gap doesn't necessarily mean better insulation. I think between 1/8" and 1/2" are ideal because it minimizes convection within the pane.

Still, a good idea and I'd like to see how it works out. I was just looking at the frames I started making last year as I was cleaning up the garage the other day. I still gotta finish those up!
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Old 09-27-11, 10:08 AM   #3
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Insulated glazing - Wikipedia, the free encyclopedia
"Typically, most sealed units achieve maximum insulating values using a gas space of between 5/8 to 3/4


I would expect the double width screen hack would be between 1/2" to 3/4",
depending on the hardware. If it was only 1/4", it would still help,
but the gain might not be worth the price of the extra frame.
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Old 09-27-11, 10:54 AM   #4
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Haha, thanks for the correction! I didn't think that the ideal was that thick. I actually thought my interior storms were going to be thicker than ideal.
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Old 09-27-11, 11:01 AM   #5
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Wow, I was just looking at my four Anderson sliders,

And, they either have a VERY narrow gas space, or just some thick glass!!
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Old 09-27-11, 11:58 AM   #6
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I'd be very interested to see what interior storms would do for your den. As I recall, there is quite a bit of glass in there. Since the interior storms have the ability to tripple insulation, it could have a huge effect on that room.
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Old 09-27-11, 03:02 PM   #7
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I like it. Just trying to figure how to get the blinds up from behind the insulated glazing unit? Looks like leave the blinds up and let her buy some new window treatments! I'm sure she would go for it then
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Old 09-27-11, 04:02 PM   #8
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The blinds could be kept functional by placing a hole in the side of the frame just large enough for the pull cord to fit out if it. This will allow for some air movement but not much.
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Old 09-27-11, 05:01 PM   #9
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Quote:
Originally Posted by Phantom View Post
The blinds could be kept functional by placing a hole in the side of the frame just large enough for the pull cord to fit out if it. This will allow for some air movement but not much.
Yes, that would work. Thanks.
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Old 09-28-11, 11:16 PM   #10
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"Typically, most sealed units achieve maximum insulating values using a gas space of between 5/8 to 3/4


On page 16 & 17 of this reference doc,
http://www.andersenwindows.com/homeo...troduction.pdf
is information that seems to id my old LOF 88/1 XI windows.


Hard to tell by looking, but it seems like each pane is about 1/8" thick, with a bit less than 1/8" of air space between them. (Maybe 1/10).?.

I can't see any space at the bottom edge of the pane,
like I can see in my newer replacement windows (Spacer is a strip of metal).
No spacer can be seen, just glass.

These windows just don't seem to have the needed air space to work right..

Our single pane magnetic window cleaning gizmo does not work with our replacement windows.

But, it works just fine on these windows.. Nice strong grip..

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