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Old 01-05-2016, 01:30 AM   #1
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Curious about the wall construction

Is it hung wall like Newmar uses or some other type? I know it's not the laminated/pressed like some are and that have no real strength. I know the walls are steel framed, just not sure about how the siding is installed.
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Old 01-05-2016, 07:29 AM   #2
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Can't help but thought you might like to see this.2009 Country Coach Magna
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Old 01-05-2016, 08:01 AM   #3
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Mr D, our walls are laminated. Not sure if they used vacuum bonding or a roller press method but they are foam interior with plywood on the inside and fiberglass on the exterior. There is solid piece of wood around the perimeter of the window openings.

I had an undiscovered (until now) leak at my skylight which has allowed water to enter the roof structure around the skylight. I was surprised to find 1/2" MDF as the ceiling material to which the foam-back vinyl is bonded. MDF is heavy and turns to mush when it gets wet. Wish they had used plywood there because it is going to be much more difficult to dig out and replace the damaged MDF. Also not sure I can re-bond the padded vinyl to whatever I used to replace the MDF.
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Old 01-05-2016, 10:27 PM   #4
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Originally Posted by mike brez View Post
Can't help but thought you might like to see this.2009 Country Coach Magna
Damon sold us the rig and I have seen that site some time ago and forgot about it. Thanks for the reminder and link!
Sure looks a lot like ours, same kitchen layout (we don't have nor want the dishwasher), the desk layout is the same, ceiling treatment the same, washer/dryer same units, bedroom layout, even the king bed and no side windows at the head, bath is the same, the light in the shower is different though. Wish there was more details of the wall construction though.
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Old 01-05-2016, 10:47 PM   #5
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Mr D, our walls are laminated. Not sure if they used vacuum bonding or a roller press method but they are foam interior with plywood on the inside and fiberglass on the exterior. There is solid piece of wood around the perimeter of the window openings.

I had an undiscovered (until now) leak at my skylight which has allowed water to enter the roof structure around the skylight. I was surprised to find 1/2" MDF as the ceiling material to which the foam-back vinyl is bonded. MDF is heavy and turns to mush when it gets wet. Wish they had used plywood there because it is going to be much more difficult to dig out and replace the damaged MDF. Also not sure I can re-bond the padded vinyl to whatever I used to replace the MDF.
I'm also surprised by that!
We visited the factory sometime in 2000 or so but I don't remember seeing the wall assembly. I know Monaco used wood around the windows as I helped a friend remove the side window and bring a new Samsung refer in. I was hoping that CC used metal around the windows like Newmar did but I guess not
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Old 01-06-2016, 06:52 AM   #6
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I'm also surprised by that!
We visited the factory sometime in 2000 or so but I don't remember seeing the wall assembly. I know Monaco used wood around the windows as I helped a friend remove the side window and bring a new Samsung refer in. I was hoping that CC used metal around the windows like Newmar did but I guess not
We've had six of the eleven windows out of this coach for de-fogging at RV Fog Dr. in Searcy, AR. All of the openings but one had a wood perimeter. The large driver's window did have steel tubing and it was rusted from a leak. RV Fog Dr. did fine de-fogging the windows but a poor job treating the rust on that frame. I had the folks at CC pull that window and they used POR 15 on the frame and resealed the window.
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Old 01-06-2016, 11:14 AM   #7
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Mr D, our walls are laminated. Not sure if they used vacuum bonding or a roller press method but they are foam interior with plywood on the inside and fiberglass on the exterior. There is solid piece of wood around the perimeter of the window openings.

I had an undiscovered (until now) leak at my skylight which has allowed water to enter the roof structure around the skylight. I was surprised to find 1/2" MDF as the ceiling material to which the foam-back vinyl is bonded. MDF is heavy and turns to mush when it gets wet. Wish they had used plywood there because it is going to be much more difficult to dig out and replace the damaged MDF. Also not sure I can re-bond the padded vinyl to whatever I used to replace the MDF.
I have a 2002 Magna. I have yet to find a single piece of MDF in this coach. Marine grade plywood or other very high quality plywood or solid wood.
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Old 01-06-2016, 12:35 PM   #8
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I have a 2002 Magna. I have yet to find a single piece of MDF in this coach. Marine grade plywood or other very high quality plywood or solid wood.
Well, I was surprised too. I wish I had pulled the inner skylight liner when we first got the coach to check. I had a skylight leak on my previous DP but caught it early and there was little damage to the ceiling.

When I got the liner out, I can see the fiberglass roof sheet, thin Luan sheet at the top. There is what appears to be some lightweight wood frame (looks like poplar) to form up the opening for the skylight. At the very bottom is a light chocolate brown MDF appearing board, then the foam backed vinyl ceiling material glued to it. If it is not MDF, it is certainly something like it. It soaked up the water and turned to mush around the leak area. I can pull chunks of it out, squeeze it into a ball and squeeze water out of it.....similar to wet cardboard.

I agree that in every other place in this coach I have been impressed with the material quality and sturdiness. When we replaced both TV's and saw the inside of those openings, I was amazed at the thickness of the framing and plywood used. I am wondering why there is such a water weak material in the ceiling/roof structure. MDF, if that is what it is, is dense and heavy and I would certainly think a thin plywood would have been lighter, just as strong, and certainly more resistant to water intrusion.

When I get around to pulling all this stuff out I will certainly be replacing it with plywood. I've been around boats for years so I may even coat it with fiberglass resin to seal it up.
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Old 01-06-2016, 01:35 PM   #9
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When we go our coach from Country Coach on consignment in January 0f 2013 the first thing I did was to get on the roof and do some checking (sun was out but cold) and found that the sky light had a 1/4" to 1/2" gap on all 4 sides where I could see all the way past the ply wood and a rubber type layer. I used the spray cleaner to clean then used EternaBond tape and then coated it with the Pro Flex sealer. I have sealed everything on top with Pro Flex, great stuff
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Old 01-06-2016, 01:45 PM   #10
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During the PDI I also got on the roof. The one thing that surprised me was that the sales person (not Damon, he was out of town), questioned as to why I wanted to look at the roof! I found that the OTA antenna was tie wrapped down and asked about that. Was told the old one was broken and a new one was ordered, which was true.
After everything with the DW's health (liver cancer) gets straightened out I'll probably take it down to Junction City and have the drivers window taken out and resealed, although we do have good places locally too.
From what I can see from various sites I know the wall structure is steel tubing with foam beadboard insulation and it's tightly fitted. Still wondering about how the outside skin is attached.
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Old 01-06-2016, 01:51 PM   #11
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I agree that in every other place in this coach I have been impressed with the material quality and sturdiness. When we replaced both TV's and saw the inside of those openings, I was amazed at the thickness of the framing and plywood used.
I was too! Along with how much space was wasted by trying to keep the "high end" look.
Well, darn!! I took some pictures but I can't find them right now! Must be on my laptop. I'll look later tonight at work.
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Old 01-06-2016, 02:06 PM   #12
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I have been into the roof. No MDF. I suspect this is part of CC quality going down over the years. This is 2002 vs 2007.
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Old 01-06-2016, 02:16 PM   #13
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" Still wondering about how the outside skin is attached."

Glue, same as the inside
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Old 01-06-2016, 02:49 PM   #14
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When we go our coach from Country Coach on consignment in January 0f 2013 the first thing I did was to get on the roof and do some checking (sun was out but cold) and found that the sky light had a 1/4" to 1/2" gap on all 4 sides where I could see all the way past the ply wood and a rubber type layer. I used the spray cleaner to clean then used EternaBond tape and then coated it with the Pro Flex sealer. I have sealed everything on top with Pro Flex, great stuff
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I did the roof detail within a week of getting the Allure. I used Eternabond on both roof vents and recaulked the skylight with Dicor (I had run out of ebond and planned to get more).

Subsequent health problems for me then DW got me sidetracked on getting back to roof maintenance. I have used brush on ProFlex on skylight for now. Will do permanent fix when we get thru this 3 month trip. Going to jettison the skylight close the opening and install a vent fan.
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