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Old 06-20-2012, 06:11 PM   #29
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Originally Posted by HiHoAgRV View Post
I have also seen that on the trailer forums...the boating/kayak/canoe folks have a completely different perspective...they deal with water in a larger picture than us. I sealed my floor with epoxy.
I think they are talking about insulation. People seem to agree that the fiberglass insulation holds water.
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Old 06-20-2012, 06:18 PM   #30
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Originally Posted by Eric H

I think they are talking about insulation. People seem to agree that the fiberglass insulation holds water.
Duh. You are correct! (walking away red faced)...
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Old 06-20-2012, 07:07 PM   #31
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Okay, so I think I have settled on a floor insulation solution. Feel free to unsettle me if you have any better ideas.
For under the floor: Expanded Polystyrene Insulated Sheathing with an R-value of 7.7
For the Walls: One layer of Prodex, plus HSC painted on the exterior of the interior skin. The Prodex supposedly has an R-value of 15.6.
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Old 06-20-2012, 07:20 PM   #32
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Might want to rethink the HSC. See this thread http://www.airforums.com/forums/f478...e-86901-2.html

I think the conclusion was that HSC isn't a great idea unless perhaps you used it to paint the ribs as a thermal break

Whoops on edit I see that you are aware of this. What made you decide to use the HSC? Just curious.

At the restoration rally, Uwe was recommending two layers Prodex below, three in ceiling panels separated by strips of Prodex to create airspaces.
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Old 06-20-2012, 07:26 PM   #33
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[QUOTE=aluminitus;1163810]Okay, so I think I have settled on a floor insulation solution. Feel free to unsettle me if you have any better ideas.
For under the floor: Expanded Polystyrene Insulated Sheathing with an R-value of 7.7

Great thread... and makings of a great trailer.

For the under-floor insulation, I would use either "Extruded" (not expanded) polystyrene... it will be pink or blue, or Polyisocyanrate (urethane)... golden color, with foil facing.

The white foam will actually suck water from the air over time.

Good Luck, you've made great progress.
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Old 06-20-2012, 08:49 PM   #34
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What's the best way to stick that sheathing to the underside of the floor? I assume liquid nails would be good, but I could also see it eventually pulling away due to the fact that the sheathing is fairly brittle and weak. The liquid nails would stay intact and stuck to the underside of the flooring, but it would separate from the sheathing... or maybe not? Seems like it would need something extra to hold it up..
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Old 06-21-2012, 07:48 AM   #35
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byamcaravanner: oops that's what I meant. Whichever one it is that is colored is the one we will use. Does it have to have a foil facing?
reinergirl: The reason the HSC is for cool weather camping (since we will be full-timing), so that it will keep heat inside the trailer better, therefore it will be painted on the (non-visible part) inside skin to reflect heat back in. It should add to water tightness, have sound-deadening qualities, and I already have 5 gallons of the stuff that can't be returned
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Old 06-21-2012, 12:17 PM   #36
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Not to bombard everybody with questions...oh wait. This is my thread. I'll do what I want
There is an unusual dent in the front endcap that was made before we got the trailer.

I have called a dent removal guy who said that it would be $50 for him to come look at the thing to tell me whether or not he can do something about it. Plus there isn't anything close by that he could use for leverage to push/pull on it. I have tried gluing an elevator bolt to the dent and pulling. The glue was not strong enough and came off. I have tried a suction cup, but since it is on a curved surface and has rivets at the edge, there was no suction. I tried using a rubber mallet on the back side (albeit very tentatively) and nothing budged. Should I try a hammer and dolly or will this make it worse? What about one of these on the end of a pry bar? We are getting close to having to insulate the trailer and I really want the big dent and maybe the long dent gone before it is too late.





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Old 06-29-2012, 07:35 PM   #37
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I know what you are thinking.
"???????"
I don't really have a good explanation, other than it was really really hot in the shop and I had been under a trailer insulating all day. Yesterday broke the record for the hottest day since 1954. 103 or so. Good grief!
As you can see from the above picture, we bought Prodex insulation. With a claimed R-value of 15.6 for one layer and 21 for two layers and waterproof-ness (it's a word, right?) Prodex seemed the way to go. Since insulation4less.com is the only company that sells the stuff, I had to buy it from them. Believe me, if there had been another way, I would have purchased it elsewhere. Having looked all over the web for reviews, the Prodex consistently was rated well but the customer service was terrible. I decided to do an experiment. Since the company was having a buy one-get one sale that was worded poorly and overall very confusing, I decided to call them and get some clarification. The notoriously rude owner picked up and I hadn't gotten half a sentence out before he interrupted me and chided me for not looking at the website. I actually had some questions about the Prodex itself but he brushed me off and curtly hung up. He failed my test miserably.
Grudgingly I ordered two rolls of it, and hoped that they would showup without any issues so that I would never have to have contact with that awful man again. It is a shame, really. He could have a good company if only he wasn't him.
As for the Prodex itself, it was easy to work with, easy to cut and I think it will do a good job of keeping the trailer warm and cool as needed.

Two layers went on the underside:

The gray and black tanks were both installed...

and will have at least one layer of insulation covering them.
The pugs got to stay in the air conditioned office and were glad for it, but after having gotten up at 6:30 and "working" all day, they were ready for a good nap.
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Old 07-31-2012, 10:13 PM   #38
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Progress with the belly pan
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Old 08-03-2012, 05:14 PM   #39
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Aluminum shower pan/wet bath floor has arrived!
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Old 08-03-2012, 05:49 PM   #40
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Nice to hear that you got the pan fab wrapped up. I will be following this closely as we're ripping the center bath out of our 31'er. We're looking into custom fab for the shower pan, countertop and sink. Looking forward to your updates.

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Old 08-24-2012, 08:50 PM   #41
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Today was the big day! Maybe not the big day, but a pretty significant one. The shell went back on!
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Old 08-25-2012, 07:31 AM   #42
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Horray!!! THE SHELL HAS LANDED!
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