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Old 02-09-2015, 08:24 PM   #43
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I leave the repair of double pane windows to the experts and there are a few located around the country that are reputable.

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Old 02-09-2015, 08:38 PM   #44
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Originally Posted by MSHappyCampers View Post
Look at this cross-sectionial view. Sure looks like air space to me.

http://www.rvwindows.com/wp-content/...12/06/1800.pdf
It is filled with an inert gas, so it's not air.
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Old 02-09-2015, 08:40 PM   #45
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Dual pane windows are great for for homes that stay still. RVs flex going down the highway and is a cause many double pane windows crack their seal and fog. Repair costs can mount up over time.
I don't have double pane windows on my car or truck, but then I don't make it a habit of sleeping in them.
To each his own,-
Have had double pane windows in the last two MH's. Present one is almost 13 years old and I've never had one lose their seal, nor have I had one break.
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Old 02-09-2015, 10:20 PM   #46
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It is filled with an inert gas, so it's not air.
Dual pane widows for homes and commercial buildings usually have inert gas between the panes. RVs usually just have air. However, even with just air, dual pane windows are an improvement over single pane windows.
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Old 02-09-2015, 10:32 PM   #47
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Which misinformation is that?
These:

Actually rgmiller, our 2014 Phaeton does have a double pane windshield. I learned this when we were hit by a rock and I had to call to have it repaired and the Safeguard repairman told me that Tiffin uses a double pane windshield made overseas. There is no space between the panes. The stone did not break the inside pane.

bah. frameless windows are way better in the cold that double glazed aluminum framed windows. Glass is a far better thermal insulator than aluminum is.

As far as I know every vehical windshield is dual pane laminated safety glass, (witch has "no space between the panes".

Shouldn't be any "air" between the panes, if there is the seals have failed.

The Double Pane Sealed RV windows have a vacuum pulled on the dead air space between the two panes prior to them being completely sealed up.
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Old 02-09-2015, 10:59 PM   #48
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Double pane windows were about 350 lbs. more in ny fifth wheel trailer and an additional $1,100.

Since I'm a weekend warrior in the relatively cool mountains, I couldn't see it.

If I was a full timer in the California desert, it might be worth it.
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Old 02-09-2015, 11:47 PM   #49
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Double pane windows were about 350 lbs. more in ny fifth wheel trailer and an additional $1,100.

Since I'm a weekend warrior in the relatively cool mountains, I couldn't see it.

If I was a full timer in the California desert, it might be worth it.
I never thought about the extra weight! We have single panes in our Neptune. We haven't used it yet in the summer. It HAS to be cooler than our 92 Fleetwood Flair. We cooked in that thing the past two summers!
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Old 02-10-2015, 05:42 AM   #50
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It is filled with an inert gas, so it's not air.
I can't find any RV window spec that mentions inert gas ... can you?

Residential homes ... yes.
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Old 02-10-2015, 06:14 AM   #51
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I repeat my claim of frameless being better than dual pane's. If their best can only minimize air and wind intrusion....

Quote:
Series 1800 Motion Windows incorporate dual pane glass—providing many product benefits including superior insulation, minimal air and wind intrusion, reduced condensation, and noise reduction.
Dual Pane RV Windows, RV Dual Pane Windows | RVwindows.ComRvwindows.Com

This depicts the themal conductivity of an aluminum frame, add in the "minimal air intrusion" and you can begin to understand why frameless are better.



http://www.alpenhpp.com/education/un...e-high-r-value
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Old 02-10-2015, 06:49 AM   #52
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The problem with the aluminum vs fiberglass is the amount of frame material vs glass. Yes, aluminum frames are more conductive than fiberglass. However the majority of the heat loss is through the glass not the frame. It all a matter of surface area. That is why I call it comparing the size of the holes in your screen.
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Old 02-10-2015, 07:32 AM   #53
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Give these guys a call and they will give you the correct answer to what is done when they repair fogged windows.

https://www.youtube.com/v/tTTLrqF6Tco

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Old 02-10-2015, 01:50 PM   #54
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Actually rgmiller, our 2014 Phaeton does have a double pane windshield. I learned this when we were hit by a rock and I had to call to have it repaired and the Safeguard repairman told me that Tiffin uses a double pane windshield made overseas. There is no space between the panes. The stone did not break the inside pane.
That is not the definition of a dual pane window. I just looked up a replacement windshield for all 2014 Phaetons, and they have normal laminated glass windshields just like every other motorhome.

Windshields are laminated for safety. They are manufactured of tempered glass laminations that are glued together.

When your windshield gets a chip or minor crack it's usually only on the outside layer of glass.

A dual pane window is a different beast. It is made of two tempered glass layers with an air gap between them for insulation purposes.
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Old 02-10-2015, 02:07 PM   #55
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It is filled with an inert gas, so it's not air.
Window manufacturer's use inert gas, (nitrogen), because it's cheap, clean, non-flammable, and easy to handle. The intention of using nitrogen is just to evacuate the "dirty" environmental air, not to keep the nitrogen in there permanently. Only very precise optics such as scientific lens assemblies, nice binoculars, rifle scopes, and photographic lenses will maintain their original nitrogen for any period of time.

Even in residential and commercial window applications, the seals eventually dry out and leak. It's not a "big" deal because the source of the leak is a tiny hole somewhere that is smaller than dust particles, so it's never noticed.

However, for RV applications the moment you see fog in a dual pane window some moisture has leaked in. RV windows receive vibration and temperature extremes that will eventually cause even the most expensive "hermetically sealed" dual pane windows to eventually leak.

Every day, I use much more spendy and advance designed versions of dual pane windows in jet aircraft, and even those eventually leak.

Even when they are fogged, they are still performing their prime task of providing insulation.
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Old 02-11-2015, 10:01 AM   #56
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Having fixed the double pane windows in our motorhome, I speak from experience. This is the material to use. It is THE SAME material the windows are originally made with. The spacer material has a desiccant embedded in it to minimize moisture problems. I suspect that the window manufacturers either use nitrogen or just have an air drier machine to insure what is between the glass has minimal moisture to cause fogging. I'm sure they will all fog given enough time. The repair is not difficult, just time consuming and gives a great ego-boost when you can tell people you fixed your own.
CRL Gray 3/16" Wide Edgetech Super Spacer - 66 Foot Roll by CR Laurence - Power Rotary Tool Accessories - Amazon.com
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