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Old 01-31-2008, 10:47 PM   #1
Mini-Skoolie
 
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Location: Vermont
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But baby it's cold out side...

My husband and I just started our conversion this week! We've got all of the seats out and are ripping up the rubber mats and rotted ply-wood. The next step is rebuilding and as we are doing our conversion in Vermont in the middle of winter, insulation has been on our minds a lot.

We have a higher top bus at 6 feet 4 inches, but unfortunately my husband is 6 foot 2. We would love to put foam board insulation of the floors,
but fear that we would lose critical height and it would leave my husband hunched over. As we can't really afford the chiropractic bills, but also don't want to freeze, we've been toying with the idea of doing spray insulation from under the bus.

Has anyone else done this? or even think it could be done? We were thinking that we might have it sprayed it on, and then coat it with something sturdy like the stuff they line truck-beds with.

I'd love any input that you could give us.

Thanks!
Fifer
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Old 01-31-2008, 11:23 PM   #2
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Re: But baby it's cold out side...

sounds like a great idea to me. spray foam insulation guy should have some good info for ya. i believe there are 2 types of foam...closed cell and open cell?? i think that one kind tends to absorb water and the other would be better suited to your particular application. I have not done it to a bus, but have seen many ambulances that are insulated underneath with spray foam.
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Old 02-01-2008, 02:00 AM   #3
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Re: But baby it's cold out side...

Reprobate sprayed foam in his bus recently. You can see photos in the gallery here:
http://www.skoolie.net/gallery2/v/Sk...ate/?g2_page=4

and read about it in his conversion thread here:
http://www.skoolie.net/forum/viewtop...st=0&sk=t&sd=a

I was out working on my bus in 18 degrees tonight (with a heater) - I can't imagine trying to do a conversion during a Vermont Winter! I admire your determination.

- Tony
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Old 02-01-2008, 09:15 AM   #4
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Re: But baby it's cold out side...

It certainly seems like a viable option and good idea. I would think your bus underside would need a good spraywashing beforehand. The foam itself is a closed cell foam that dries rock hard so I'm not even sure it would need any other coating over it. Good idea! Good luck! Have fun with your bus and please post pics!
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Old 02-01-2008, 11:13 AM   #5
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Re: But baby it's cold out side...

We're actually expecting a Nor'Easter today- with up to 3 inches of sleet, and snow and ice on top of that

If we do the spray foam the underside of the bus do you think it will cause us to have problems getting to things that need
repair (i.e. the air ride system, brake lines etc...)?

Thank you for your replies! I have been on other skoolie sites where everyone is pretty negative about new ideas.
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Old 02-01-2008, 12:37 PM   #6
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Re: But baby it's cold out side...

just because I'm surprised no ones suggested it yet..raise the roof, god knows its one of our fav things to see done around here.

I intend to raise mine soon..I'm 6'4"

Defiantly do not spray anything you may have to work on down the road...air lines and such.
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Old 02-01-2008, 01:51 PM   #7
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Re: But baby it's cold out side...

I would be very interested in raising the roof. How costly would it be both time-wise and monetarily?
Would it undermine the structural soundness of the bus?
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Old 02-01-2008, 02:01 PM   #8
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Re: But baby it's cold out side...

Has any of you ever heard of Prodex? It's a foil/foam/foil insulation that is 1/2 an inch thick and is rated at
an R value of 14.5. It sounds too good to be true. I've talked to a couple of sales people, and obviously they
have a vested interest in making a sale. Does any of you have information about it?

Thanks!
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Old 02-02-2008, 02:34 AM   #9
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Re: But baby it's cold out side...

My concern with spraying foam underneath is that while it might help, you would still have the steel subfloor (above the foam) in direct thermal communication with exterior metal. So I would think that could reduce the effectiveness a fair amount in extreme temperature environments.
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Old 02-02-2008, 09:26 AM   #10
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Re: But baby it's cold out side...

I along with the other roof faisers(probably) would say that it is not that difficult. You don't have to take out the ceiling panels like I did, and the rest of the prep is just labor. I think I spent about $180 on steel to weld the frame back together. The cost was the $65 a sheet I spent on 6 sheets of 20ga. paint lock sheet metal. Also I think I spent about $75 on rivets(pricey little buggers). Long story short, yeah it's WORK but what isn't with these skoolies. I saw your husband is 6'2" tall. I'm 6'1" and didn't buy a tall bus so it was a foregone conclusion for me. Now that I've done it I will do it in my next bus. It's just great to have the extra height. Wish you were closer, would love to lend a hand.
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