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Old 04-03-2011, 06:22 PM   #1
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Failed Window Seal

We have an '05 Alpine 40FDTS that we bought in Arizona last summer. It has spent its whole life there. We are in Reno, much colder of course. I noticed today that two of the dual pane windows have lost their seal and have condensation inside. one of the windows is in the commode room in the frosted glass part of the window and the other is the window right beside the co pilot's seat. Is there a fix or can new windows be obtained somewhere? Thanks in advance for your input.
Mike in Reno

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Old 04-03-2011, 06:38 PM   #2
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Location: Missouri
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We have the same problem.....I understand that the rigs are prone to such what with all the bouncing, swaying, etc......I guess that puts a lot of strain on the seals.
I will be very interested in what answers you get.
We were wondering (ours are all in the movable portion of the window - the slider side) if we couldn't just lift the affected portion of the window out and take it to just any window shop?

Rick & Marilynn - Warren County Missouri
2013 Dodge Ram 2500 Crew Cab pulling a 1996 Play-Mor TimberCreek Travel Trailer
Traveling with Hannah the Pug
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Old 04-03-2011, 07:13 PM   #3
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Mike and Rick, Try this link for window repair.
This operation has a new location and I"m thinking Colorado,but I need to do some home work.
Hope I got it typed in correctly,there is another location in Mo. or Ar. and the info. is in the Bounder and it is currently in the shop. As soon as I can I will forward that location on also.
Another location is in Fl. That is farther away,but if you like I can pass the info. on.
They all remover the glass clean and reseal them. They use different methods, you will have to make the call on how and what fits your beget.
Hope this helps Dick.
Got to admit that I'm real green on this group page so if I get lost,I will find your post again.
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Old 04-03-2011, 08:38 PM   #4
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See this thread on this forum: "Fogged window repair at Dave Root". There is also a thread on the Alpine Coach forum on do-it-yourself fixes. I recently had a couple of frames fixed at A1 Auto Glass in Eugene OR, as I was having windshields replaced. The place in Florida is (IIRC) Suncoast Designers.
'99 Alpine Coach
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Old 04-03-2011, 11:49 PM   #5
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Dave Root fixed my windows and did a great job. Dave told me to fix frosted windows at no cost, you can remove the window and drill hole in the bottom of the seal between the two panes to drain the water out. If you leave the water in there, it could freeze and crack the window.

If you leave the other fogged window too long, the glass could become etched where it can't be cleaned up.
2007 Apex MDTS (425 hp) #75723
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Old 04-04-2011, 08:40 AM   #6
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Smile Failed window seal

Thanks for all the input. The idea of drilling a hole between the panes to get rid of the condensation souinds like an easy fix and shouldn't affect the insulating properties of the dual pane window. If anyone has tried this, let me know how it worked ouit.
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Old 04-04-2011, 09:26 AM   #7
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Dave's correct url is: http://www.daverootrvglassrepair.com/ and his home base is Bend, Oregon.
John and Lori
2005 Alpine Coach 40FDQS
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Old 04-04-2011, 09:37 AM   #8
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Here's the company that repaired mine: Marine Sliding Windows & Custom RV Exterior Windows

Did a great job and even moved the dividing frame in the cockpit windows up higher out of our line of vision.

I highly recommend their quality of work.
Jim & SherrySeward

2000 Residency 3790 v10 w/tags 5 Star tune & Banks system Suzuki XL7 toad
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Old 04-04-2011, 06:18 PM   #9
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If you are in the Pacific NW, Motion Windows (Peninsula Glass)(Vancouver, WA) is building a new passenger side livingroom window for us. Once we see how it turns out, we will have them fix the drivers/passenger side windows in the cockpit area. But they have been making Yacht type windows for 12 years, on some very expensive boats, and are highly recommended by the boater folks in the PNW area for those. They also do upsacle RV motorhomes as well. You can contact them at: www.motionwindows.com or call Jeff @ 360-892-2029.

The reasons are varied on why the glass seal fails, some vibration, some pressure changes form low to high and back to low (sort of like cycles on an airframe). Regardless, not only aplines have this problem, Country Coach, Winnabego's, Monaco, Prevost based MH's also to name a few. The problem is the type of material used in the seal between the glass panes. CG-CI(SP-not being at the coach to see how its spelled) supplied windows to a number of manfacturers, and are now out of business, so all those windows are going to fail over time. Other manfacturer of windows also might have issues which I don't know about.

But remember, we own earthquakes which go down the road, bumping, grinding, and constantly moving in several directions at once, not only windows are stressed out, but other components as well, which have to be tightened up.
Monty & Janet - 2007 Alpine APEX 40 MDTS
S/N - 75715 - Retired - Master Certified RV Tech
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Old 04-04-2011, 07:03 PM   #10
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You might take a look at the site listed below. They claim to have dual pane glass for motorhomes. The glass only. You will need the DOT # off the glass for them to tell you if they have replacement glass for you. If you are mechanically inclined, removing the windows from the coach and removing the glass from the frame is not a huge deal. There are also several places around the country that remove the glass from the frame and seperate the two pieces of glass, clean it, and reseal it again. Suncoast in Hudson Fl is one of many, but check out there website for more info.
Just an opinion here, but I don't think the idea mentioned above about drilling a hole in the seal to drain the moisture will solve your problems. It may drain the moisture, but defeats the purpose of the windows. The vacuum seal is where you get the cold/hot protection.
Motor Home, Motorhomes, Windshields, RV Replacement Glass and Replacement RV Windows Company List
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Old 04-04-2011, 08:50 PM   #11
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My solution for the "obscure" bathroom window would be to ignore it till it goes away, unless there is so much condensation that I could see it built up at the bottom so as to engender the freeze danger. If its just fog, well, that's what that window is supposed to have anyway so more fog wouldn't bother me.
The other coach windows however get to where they look really lousy and the "etch" problem comes into play.
I second the easy-to-DIY R&R for the windows. I did this on my Trek when I had to get at some of the magic that leaked out of the MagicBedŽ. Only trouble was gently separating the outside from the coach exterior as the butyl tape commonly used for sealing the frame to the coach is pretty sticky. Slow & steady does it so you don't bend the frame. And no fair WRV'ing the screws when you put them back, just get them tight.
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Old 04-18-2011, 07:49 AM   #12
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How did your window come out? I broke the biggest pane in the passenger slide and heve been unsuccesssful in getting a replacement pane. It has been a pain.

Joe Brunold
2006 Alpine Apex
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Old 04-18-2011, 10:33 AM   #13
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The company has not finished makeing it yet, so we have not had to take it over there yet. If you need glass, let me know. I could save it for you or something. It's a big window though, the measurements above.
Monty & Janet - 2007 Alpine APEX 40 MDTS
S/N - 75715 - Retired - Master Certified RV Tech
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Old 04-18-2011, 11:18 PM   #14
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I have the front door so I doubt if they are the same. The piece of glass I need is 22 x 61.



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