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Old 12-02-2011, 07:30 PM   #31
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Re: Sara & Andy's Bus

What type of spray foam are you using? I know you're in a time crunch, but most spray foams require temperatures of 75 to 85 degrees ambient air to properly rise. Otherwise, you'll be wasting money when the foam only expands a small fraction of its intended rate.

If you can spray in a shop, you may be able to get the temperature up to where it needs to be. I know our temps here in Virginia have dropped drastically, so you may have to be creative with finding a lot of heaters to compensate.

An alternative may be to use sheets of 1 to 2 inch board foam, then seal the edges with Great Stuff expanding foam... Just a thought.
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Old 12-02-2011, 07:49 PM   #32
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Re: Sara & Andy's Bus

I really don't think filling the tubes with foam is going to help a lot, the framework is a greater issue here. Heath losses will happen through the metal tubing itself, not the air inside. A humidity barrier is necessary, or condensation will appear inside the walls and cause water damage.
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Old 12-02-2011, 10:16 PM   #33
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Re: Sara & Andy's Bus

Originally Posted by lornaschinske
dgorila1... I thought you were considering a highway coach? Or are you just flip-flopping around, keeping your options open until something turns up? As for a roof raise... If you use a center aisle layout, you might be able to get away with a clearstory instead of a full raise. Some of the military buses and college buses have higher roofs.
No, I'm leaning towards a skoolie because they're built on truck chassis and are more rugged. I want something I can take on rougher roads when desired to stay in out of the way places (i.e. the boonies). Originally when I got the bug I was looking at Class 8 trucks pulling a 5vr, then I looked at Class 8 coach conversions, but then I learned about skoolies and became a convert. You can do so much with a skoolie for so much less money, it's a no brainer.
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Old 12-02-2011, 11:17 PM   #34
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Re: Sara & Andy's Bus

Originally Posted by dgorila1
... I want something I can take on rougher roads when desired to stay in out of the way places (i.e. the boonies).... You can do so much with a skoolie for so much less money, it's a no brainer.
The high road clearance was a plus for me. We tended to stay in Public campgrounds (National Forests) back in NC. Some of them really weren't suited to a highway coach. MOST of them weren't suited for a highway coach. But that is what David fell in love with and the Eagle was bought with part of some $$ he inherited. I wouldn't try to put the Blue Bird into Wildcat (need 4WD most of the time), I would have no problem easing into any of the campgrounds on Persimmon (Chattahoochee NF).

I have wanted a Blue Bird ever since we looked at one for sale when we were living in the campgrounds in Hixson (Chattanooga). I found a converted Blue Bird in Middle Valley that when we looked at it, we would have sworn it was a Wanderlodge. The guy who converted it styled the exterior to look like a 1970's era Wanderlodge. He had picked up a wrecked travel trailer (sell off from insurance company) and basically stuck the trailer inside the bus. Unfortunately we caved to with wishes of one of our kids who swore she would die if she had to live any longer in the campgrounds (we were truly concerned about her). So we bought a house instead. That was the last house I plan on ever owning. I really despise being "owned" by a house. I do miss my garden and the fruit trees. In hindsight, we should have bought the Blue Bird. Better late than never. I do like to "go". Six months to a year in one place is stifling. Kinda like wearing shoes.... a thing I am conscious of the whole time. I am long over due for a move... (Tuesday! whether the roads are completely clear or not)

I foamed in the square tubing on the Eagle. I used Great Foam in a can. Then before we decided to dump the Eagle, we cut into a section of square tubing that I had foamed. It was interesting to say the least and a shock to discover how much $$ I had wasted. Perhaps others had better luck. I probably did it wrong and should have drilled the holes closer together. I really thought making the access holes 18" apart was close enough. Live and learn. We did not do that on the Blue Bird.
This post is my opinion. It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.
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The goal of life is living in agreement with nature. Zeno (335BC-264BC)
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Old 12-03-2011, 06:25 PM   #35
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Re: Sara & Andy's Bus

Weld detail.

Another weld. Not the prettiest, but as long as it works =^)[/quote]

Not to be mean, but structurally those welds are useless. Seriously, they would be hard pressed to be called tack welds. You really should have them rewelded correctly for safety and structural stability.
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Old 12-03-2011, 06:45 PM   #36
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Re: Sara & Andy's Bus

I kinda gotta agree with the dgorila1. I learned to weld in vocational high school long, long ago and haven't ever really used the skill since, so I'm far, far from an expert, but those welds would never have made it out of any shop I was in.

I also agree with not trying to be mean as well - just sayin' ... might want to have another set of eyes on them before you button it up.

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Old 12-03-2011, 06:53 PM   #37
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Re: Sara & Andy's Bus

It will be a lot more effective to have 1" of insulation between the INSIDE surface of the framework and the OUTSIDE face of the wall covering than filling the tubes. The greatest heath loss will be through the metal itself, not the air inside the tubes. Actually air, if kept static (not moving) is the best insulation. Insulation material is just a lot of air cells trapped so the air will not circulate. Cut open any piece of insulation and see it yourself. Ditto for foam: lots of tiny gas bubbles perpetually prevented from moving. Air has an interesting property: if you seal closed a 4" X 4" X 4" empty (just air) box the air will start circulating inside by itself....
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Old 12-03-2011, 10:49 PM   #38
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Re: Sara & Andy's Bus

Just don't roll the bus, and it should be fine.

(I once was a boiler and pressure vessel inspector, and part of the job was weld inspection, and yeah I saw those welds, but its not my bus, and not a boiler.)
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Old 12-04-2011, 05:46 AM   #39
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Re: Sara & Andy's Bus

I am sorry but allot of the posts are correct in regards to the welds you are showing.
There is no penetration I can see in the welds pictured; they are sitting on top of the tube stock.
You can continue and in the not distant future these welds will crack loose and become a serious problem.
The most important aspect of welding is laying of the "root" weld. This is at most times the very first weld made; it has to penetrate all the way through the pieces being welded. The "cap" welds made after the root weld are also important; but don't have to look pretty to have strength.
Depending on the tube thickness a bevel is a very good idea to put on the tube end your butt welding to another to give better chance of penetration.
From what I can see you are having a problem of the "weld" running down the piece?
You need to readjust your heat and adjust the wire feed if your using a mig?
Is it flux core or gas?
In parting you have done a fantastic job BUT I would strongly suggest getting those welds redone. It will be far cheaper and allot easier now than later.
Here is a link for some examples.
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Old 02-05-2012, 11:54 PM   #40
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Re: Sara & Andy's Bus

Lookin' Good Guys! --- what are you using for the radiant barrier paint?
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