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Old 11-26-14, 02:41 PM   #15
ecomodded
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Perhaps it needs two layers to be effective / register an improvement as the link you provided suggests.

I think 10 mil poly is much better as one layer over the window frame shows substantial gains add a heavy curtain and your saving some large Btu's in the winter.
(depending on where you live)

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I am not giving up so fast

The bubbles have about a 50% larger surface area then the Glass caused by its bubbles surface area. Not a good thing *UNLESS* you were to reverse the bubble wrap so its smaller surface flat side faces in with its bubbles side facing out.

The bubbles facing in it will create a 2nd air space in between the bubbles.

I will reverse the bubbles for enhanced performance.
And will post my findings in a few days.


(also)

I think the bubble wrap needs to be applied over the window frame ( bubbles facing outside ) and not directly to the glass as I did , which is why it performed so poorly.

So more tests under proper conditions are warranted.

Last edited by ecomodded; 11-26-14 at 02:57 PM..
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