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Old 09-15-2016, 11:41 AM   #1
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Ceiling Prep

I am mentally prepping to tear into my bus, one question I have is how to prep the ceiling for insulation? We will be using the bus in old weather and hot summers, insulation will be important. What are the best practices for insulating the roof?

Also, I have read about some people removing the rivets to pull the ceiling down but, that creates a direct hole to the roof, doesn't it? If that is the case then then there are hundreds of rivet sized holes... What is the best way to seal them? Unless there is a separating member from the roof and ceiling and removing the ceiling doesn't create a new (and unsealed hole on the roof)?

Any input here is welcome, thanks.
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Old 09-15-2016, 11:57 AM   #2
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the rivets in the ceiling are rivted to the ribs and not to the roof skin, so when you take it down your roof rivets are rivted to the top of that rib so it doesnt create leaks.. it is a good time to hose down your bus and see if you have roof leaks that need addressed before you install nice new insulation.
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Old 09-15-2016, 12:11 PM   #3
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@cadilac - Thanks.
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Old 09-15-2016, 01:51 PM   #4
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Here's a typical

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Old 09-15-2016, 02:03 PM   #5
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@2kool - Did the spray foam inside the metal ribs add any rigidity to the frame? Did it have an impact on the noise level?
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Old 09-15-2016, 02:05 PM   #6
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Not mine but the foam is for an (attempted) thermal break.
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Old 09-15-2016, 08:04 PM   #7
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I hope it was two-part foam.. there have been a few discussions about how single-part moisture activated Great Stuff (and the like) may not cure well in the enclosed rib space and is corrosive to the metal in the uncured state.
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Old 09-26-2016, 08:28 PM   #8
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Has anyone had any experience with Insultex house wrap from
Home Depot. It's a thin material that comes in a 5' by 100' roll
and has an R6 insulation value. Looks like it would be handy in
doing a skoolie. Maybe as a thermal break between skin and ribs
or laying down as floor insulation if layering would double the R
value you could get R 12 in less than a half inch. Or am I just
dreaming. Surely someone here in skoolie land has had some
experience with this stuff. Input would be greatly appreciated.
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Old 09-27-2016, 05:31 AM   #9
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its bubble wrap, ive wrapped ductwork with it. it would crush easy but has been used here. if you dont use spray foam most use foam board between the ribs and a thin layer over the ribs for a thermal break
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Old 10-25-2016, 07:20 PM   #10
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Can anyone point me to more threads about ceiling work? Why do we want to remove the inner shell? Is it for thermal/leak reasons or other reasons.. We are trying to figure out plans right now and just got our bus so any input is helpful. Anyone that knows about what to remove for flooring would be appreciated also. At the back of our bus, the black part has a 4 inch crack in it, but I am unsure if that part is removed or just built over the top.
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