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Old 07-15-2014, 09:37 AM   #1
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Low E glass film

I searched the forum and found a lot of threads concerning window tint film, but only a few passing posts relative to Low E films....so I'd like to limit this discussion to experiences with Low E films, please. I'd like to limit UV and heat emission only. Here are my questions:

I would like low e film in a clear colorless (non-tinted) film. The only one I can find is from 3M and they only sell to professional installers. Anyone know of a source?

I believe ALL the glass in the AS is tempered. My reading online indicates that tempered is actually more resistant to breakage, due to heat buildup, than non tempered glass and is a non-issue. Comments?

All the mfrs. I have found indicated installation on the inside of the glass. I know in one post Protagonist recommended installing on the outside of the glass?? Pros/cons?

Does anyone have practical experience specific to LOW E film only on their AS and it's performance/durability, etc.?
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Old 07-15-2014, 01:14 PM   #2
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The low E film needs to be applied to the inside of the glass. The object is to block heat radiating from the hot glass to the inside of the trailer. It does this by being a crappy reflector of heat from the hot glass to the inside of the trailer. It may also have some reflective properties that reduce the amount of visible light coming in.

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Old 07-15-2014, 01:21 PM   #3
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Perry...tell me how you really feel...

I'm impressed with the low e windows we had installed in the house last summer. Is film performance not as good? Specs seem to indicate they are pretty close.
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Old 07-16-2014, 08:55 AM   #4
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I'd be interested in hearing from anyone who's actually installed Low E or had it installed on their AS. Our Low E windows in the Cabin work well.
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Old 07-16-2014, 09:47 PM   #5
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Do you have a source for this film or have a particular brand in mind.

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Old 07-16-2014, 09:49 PM   #6
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Well 3m colorless Low E....but they only sell to installers. But I did find a site that says they will sell to "commercial" diy'ers.

Other than that Gila seems to be the brand the box stores carry. Don't know much more than that at this point. Still a bit confused about it.
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Old 07-17-2014, 07:34 AM   #7
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I have a buddy that owns a car wash and detail shop. I could ask him about the stuff.

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Old 07-17-2014, 07:40 AM   #8
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That'd be great, Perry. I'm surprised no one has explored this with all the A/C performance concerns. If it works anywhere as well as low e windows, there are some great benefits in summer, particularly, for our ASes.
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Old 07-17-2014, 02:05 PM   #9
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I took a look at the 3M web sight and did not see a specific low E film. They have films that are supposed to reduce heat coming through a window but my gut feeling is they do that by reflecting some of the light and maybe by messing with the emissivity as well. I think they said that the film blocked up to 60% of the heat coming in and let in 70% of the light so we are only taking 10% that would be a result of emissivity. I would expect all of them to have somewhat of a mirror finish on them.

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Old 07-17-2014, 05:36 PM   #10
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Being in Texas, I have often thought that some kind of low-e film was the ticket. Mostly all I have found was the typical 3M auto tint. I'm sure that would be great on Airstreams that came with clear glass like 40s-70s, but the newer Airstreams that have a factory tint already, might make it too dark when you want the light in, like in January. Yes, we do go camping in January down here.
I'm interested to know what solutions there are for this. Maybe a big commercial window guy would know the best solution.
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Old 07-18-2014, 07:26 AM   #11
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Jan-Feb is a great time to go camping in the deep south. I have shades on all but my wing windows. It would be nice to block light from those so as to not rot the curtains and other upholstery.

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Old 07-18-2014, 07:32 AM   #12
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Yeah, the UV protection is a biggie for me too, in addition to heat blocking. Somebody's got to know.
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