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Old 09-11-2016, 09:57 PM   #11
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Join Date: Mar 2016
Location: Hempstead Tx
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Quote:
Originally Posted by ashandrik View Post
I found 4'x8' 2.75" thick used polyiso sheets for $7-8/sheet depending on quantity ordered. I got a couple pallets. I used it in my subfloor, I'm putting a full layer on my wall, and I'm doubling up the ceiling. I'll be more insulated than most new construction houses when I'm done, and it cost me much less than buying 3/4" sheets of new stuff. Craigslist can be a wonderful tool.
Did you get extra/ is there more available? I may have to head over your way
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Old 09-12-2016, 01:32 PM   #12
Mini-Skoolie
 
Join Date: Jan 2016
Location: Tennessee
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Year: 1999
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Rated Cap: 90 passenger
I found this green board insulation at Lowe's that says XPS so I think that's right. How thick insulation do I need for the floors? How high should the furring strips be? I can't find anything called poly iso for the walls. The people here are not helping me. I'm trying to do my floors today and I can't figure this insulation thing out. The xps is green. Is that the right stuff? Does anything go over that it just the subfloors? How thick wood should I get for the sub floor itself?
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Old 09-12-2016, 02:11 PM   #13
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Quote:
Originally Posted by Memphis View Post
I found this green board insulation at Lowe's that says XPS so I think that's right. How thick insulation do I need for the floors? How high should the furring strips be? I can't find anything called poly iso for the walls. The people here are not helping me. I'm trying to do my floors today and I can't figure this insulation thing out. The xps is green. Is that the right stuff? Does anything go over that it just the subfloors? How thick wood should I get for the sub floor itself?
If it says XPS then that is the right stuff. I've seen in it green, pink, and blue depending upon who the manufacture is.

The thickness you want is going to depend upon two things. First is how cold a climate do you plan to live in? If you're going to be in freezing temps then use at least 1 inch or thicker. The second factor is how much height do you have before you hit your head on the ceiling? The thicker your insulation and plywood that goes on top of it, then the less space you'll have to the top of the ceiling. For your plywood subfloor I'd go with at least 1/2 inch or thicker.
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Old 09-12-2016, 02:16 PM   #14
Mini-Skoolie
 
Join Date: Aug 2016
Location: North CT
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Chassis: B600, 545 Allison Auto
Engine: Cummings Dimple Block 12Cyl.
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Hi TAOLIK
I am 6'3" as well - not ideal for a Skoolie..
How did you end up doing your floor as height is a large concern at the moment?
Wish I had the funds to raise the roof - but unless someone knows a quick and easy way to get more headroom, thinner floors...
Thank you
Howard
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Old 09-12-2016, 03:06 PM   #15
Mini-Skoolie
 
Join Date: Jan 2016
Location: Tennessee
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Engine: DT466E
Rated Cap: 90 passenger
Quote:
Originally Posted by FlyboyHPD View Post
If it says XPS then that is the right stuff. I've seen in it green, pink, and blue depending upon who the manufacture is.

The thickness you want is going to depend upon two things. First is how cold a climate do you plan to live in? If you're going to be in freezing temps then use at least 1 inch or thicker. The second factor is how much height do you have before you hit your head on the ceiling? The thicker your insulation and plywood that goes on top of it, then the less space you'll have to the top of the ceiling. For your plywood subfloor I'd go with at least 1/2 inch or thicker.
Thank you so much. We are going to be in the mountains in Oregon, so freezing. We will have 2 Woodstoves. We have a 90 passenger international Genesis. Doghouse in the front. 45' from the driver seat to the back. 7.5' across. We did not take the ceiling off so we will have the standard ceiling for now. My husband is 6'2". I'm 5'4". So 1" furring and 1" insulation for the floors? Then 1/2" subfloor maybe? We are covering with cork flooring after the subfloor.
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Old 09-12-2016, 03:08 PM   #16
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Memphis: I agree with what Flyboy says. My plywood(2nd choice osb) will be 1/2, or 9/16 (whatever is cheap and close to that thickness at home depot/lowes). For me height is extremely important, so I would love my insulation, plywood, and vinyl flooring to be under 1 1/4" Polyiso is usually R-max brand and looks like this. IF you use XPS instead, it's not that big of a deal, but I think polyiso has better insulating values. I'm not sure what exactly you're asking about the furring strips, and I'm probably not qualified to answer it anyway since I have no experience with that yet. I'll probably space mine whatever distance feels right. I'm going to do my best to avoid using them for the ceiling but I don't know how well that's going to work out.

HJS26: I'll hopefully have an update for the flooring within a week, but I've been caught up on a few other side projects. I plan to copy how JakeC's Brutus did his subflooring. You can find that here. The only difference is I'm not going to insulate underneath my shower.

As far as headroom goes, I too wish I raised my roof, but I prefer quitting my job, moving in my bus sooner and letting my back take one for the team over working another 6 months. Next bus(in a dozen years or so) will have a raised roof, this bus is more of a warm up. I think the only thing you can really do to utilize space is efficiency-meaning consider spray foam which has higher insulating values. But I only say this because I'm going to probe foam contractors rates today. I don't actually know if I'll go that route, but if I can foam my ceiling under $400 I may bite the bullet. Edit: I've called about 5 contractors and this may not be realistic. Probably going to stick with foam board insulation.
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Old 09-12-2016, 03:27 PM   #17
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Thanks! We are also trying to move quickly to escape work and start our own business. We didn't take the ceiling off for that reason, and are leaving the ceiling for now. My previous build I didn't even take the floors off, but now I have kids so keeping warm is a priority. I'm going to measure the height of the bus today before we head to get insulation and make sure we have enough room for husband to stand up. I might have to compromise and get 3/4 inch insulation for the floors instead of 1" due to his height. We are doing cork flooring over the sub floor so it isn't too thick but it's thicker than laminate. This whole thing is giving me a headache. The person who was supposed to be helping us (a master carpenter) is sick this week, and i took vacation from work to get this done this week so there went all of my help i thought i would have.
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Old 09-12-2016, 03:48 PM   #18
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I will state my opinion as follows. If you intend to spend more than $2,000 on your bus/live in it I highly recommend you insulate the ceiling as well as fix any leaks that come out of it. Sounds like you have more experience doing conversions than myself but I am very grateful I took out the ceiling. Aside from the leaks there was a lot of gross moldy fiberglass insulation. At the very least you should take one panel down to see what kind of shape your insulation is in, or don't its your bus. Best of luck!

Edits: Leaving your ceiling in will improve your structural integrity of your bus.
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Old 09-12-2016, 06:54 PM   #19
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Originally Posted by Memphis View Post
Thanks! We are also trying to move quickly to escape work and start our own business. We didn't take the ceiling off for that reason, and are leaving the ceiling for now. My previous build I didn't even take the floors off, but now I have kids so keeping warm is a priority. I'm going to measure the height of the bus today before we head to get insulation and make sure we have enough room for husband to stand up. I might have to compromise and get 3/4 inch insulation for the floors instead of 1" due to his height. We are doing cork flooring over the sub floor so it isn't too thick but it's thicker than laminate. This whole thing is giving me a headache. The person who was supposed to be helping us (a master carpenter) is sick this week, and i took vacation from work to get this done this week so there went all of my help i thought i would have.
A 1/4" less isn't going to be noticed in the vertically challenged department cause if your already ducking then your going to hit your head anyway?
Some insulations have a higher R value with thinner material? The higher the R value the better the insulation.
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Old 09-12-2016, 07:01 PM   #20
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Originally Posted by HJS26 View Post
Hi TAOLIK
I am 6'3" as well - not ideal for a Skoolie..
How did you end up doing your floor as height is a large concern at the moment?
Wish I had the funds to raise the roof - but unless someone knows a quick and easy way to get more headroom, thinner floors...
Thank you
Howard
You could clean scrape, scrub,paint and insulate from underside the bus and put nothing but a 1/4" underlayment and a finished 1/4" floating floor type gig inside?
Which would be my plans if I ever get out of the south in the winter? Doubt it but stranger things keep wanting to happen?
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