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Old 07-10-2016, 10:42 PM   #1
Mini-Skoolie
 
Join Date: Sep 2015
Posts: 35
Custom roof

This post is in regards to roofing materials and insulation and sealing techniques NOT the support structure or ceiling.

I will be building a type 'D' and plan on raising the roof to gain about 7' clearance.
I have noticed that most RV's have flat roofs and would like one as well.
Also i will be lifting and probably replacing the windows with horizontal sliders and stationary windows in some places, I prefer the streamline look of a Greyhound like one continuous window.

I plan on haveing a full or near full-length roof deck as well.

I see a few way to go with this, Plywood, sheet-metal and sealant with a gap between the deck or possibly use the deck as part of the roofing?

I think an air gap between the deck and roof would help on cooling.

Thank you for your advice.
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Old 07-10-2016, 10:55 PM   #2
Skoolie
 
Join Date: Mar 2010
Location: Texas
Posts: 198
Year: 1997
Coachwork: AmTran
Chassis: Genesis
Engine: DT466
Rated Cap: 84
You are looking at a great deal of money fabrication. You might want to look at a box truck or coach bus instead of a school bus.
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Old 07-11-2016, 12:22 PM   #3
Mini-Skoolie
 
Join Date: Sep 2015
Posts: 35
Wink

Quote:
Originally Posted by Timelord View Post
You are looking at a great deal of money fabrication. You might want to look at a box truck or coach bus instead of a school bus.
Rent is expensive and basically throwing $money$ in a hole in the ground.

The whole bus conversion endeavor will be a great deal of fabrication which doesn't scare me, what does is doing something wrong that bites me in the ass later like a leaky roof or a leaky floor heating. Those are my current two biggest concerns. But this post isn't about money or work...
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Old 07-11-2016, 09:11 PM   #4
Mini-Skoolie
 
Join Date: Aug 2015
Location: Atlanta
Posts: 61
Year: 2002
Coachwork: tc2000
Chassis: blue bird
Engine: cummings 5.9
Roof won't leak if you seal it correctly. Atleast not for the first ten years. Having Deck is worth it.
Why raise the roof only 7"?
If you are going big, go big. If you want square, don't convert a school bus.
It would look really weird anyway.
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Old 07-11-2016, 09:37 PM   #5
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 4,289
Year: 1991
Coachwork: Carpenter
Chassis: International S3800
Engine: DT360
Rated Cap: 7 Row Handicap
i trhink he is going for 7' cleasrance total.. which if you go for that clearance along the sides is likely an 18" raise in a taller-window bus like a thomas?

it really does sound though like a coach might suit you better... or even a transit sty;e bus roof-raised.. for the square look..

-Christopher
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Old 07-11-2016, 11:25 PM   #6
Bus Nut
 
Join Date: Jun 2016
Location: Garden State (rural NJ)
Posts: 383
Unless it's one piece, I'd reconsider a flat roof if you're concerned about leaks. Water pools on flat surfaces. Ask owners of older RVs, >10 years old, how they like their flat roofs.
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Old 07-12-2016, 01:12 PM   #7
Skoolie
 
Join Date: Feb 2015
Location: Miami
Posts: 156
Year: 1998
Coachwork: Thomas
Chassis: MVP
Engine: CAT 3116
Rated Cap: 84
Why not raise the roof, leave the original curved exterior roof, and frame it out inside so that you have a flat ceiling?
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Old 07-12-2016, 01:53 PM   #8
Mini-Skoolie
 
Join Date: Sep 2015
Posts: 35
Thank you all for your suggestions.

After putting a more natural curve on countertops and aisle I'm beginning to think a curved ceiling may fit the look of the interior better than flat. I was most concerned on how a flat deck looked on the curved exterior but have an idea that should make it look nicer. A fascia from the deck that allows roof drainage and ventilation. The deck will be sectional so i can easily hinge it up for roof mantance/ access.

I'm still playing with ideas for the deck and thinking on having sides that fold flat for relocating the bus and open at about 45 degrees overhanging the sides of the bus for safety and privacy. I'll post pics when i get the model looking a little less embarrassing..

I'm also trying to keep the height as low as possible especially after watching the 11'-8" video... LoL
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Old 07-12-2016, 01:56 PM   #9
Mini-Skoolie
 
Join Date: Sep 2015
Posts: 35
Quote:
Originally Posted by scootie View Post
Roof won't leak if you seal it correctly. Atleast not for the first ten years. Having Deck is worth it.
Why raise the roof only 7"?
If you are going big, go big. If you want square, don't convert a school bus.
It would look really weird anyway.
I think the reason i building a bus is to have a mobile roof deck... LOL

As for big you should watch the 11'-8" video...
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Old 07-12-2016, 02:03 PM   #10
Mini-Skoolie
 
Join Date: Sep 2015
Posts: 35
Is it not recommended to have say 2" pipe/tubing welded or bolted from the floor or frame to the roof structure. I'd like to have a few of these off center line of aisle but concerned with the bus flexing and popping roof rivets.

The use is for room separation/ wall support and hammock anchor points both interior and above roof deck, that portion will be removable or foldable.
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