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06-07-2018, 04:21 AM
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#1
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New Member
Join Date: May 2018
Location: Rocky River Ohio
Posts: 9
Year: 95
Coachwork: BlueBird
Chassis: TC2000
Engine: 5.9 Cummings
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Cooling Paint?
We are converting a BB TC2000 with no AC.
She's already white, but still warmer inside than out.
Any suggestions on an insulating or reflective paint to cool the roof? We mostly camp in the summer months.
How about inside on the ceiling? I'm over 6' tall and the Bird has the handicap raised floor so adding insulation to the ceiling will kill my back.
Lastly, has anyone used Por 15 on their floor?
New to the group thanks for the advise.
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06-07-2018, 06:05 AM
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#2
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Skoolie
Join Date: Mar 2018
Location: Upstate, SC
Posts: 164
Year: 1992
Coachwork: Thomas
Chassis: International
Engine: DTA360
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I only have the yellow roof to compare with, but We painted the top HALF of our bus with it yesterday and wowwww what a difference. Roof cool to the touch in the South Carolina sun. Also did you pull out your ceiling panels and insulation? If so, I would spray foam flush with the bus ribs after mounting some framing to connect a new ceiling to. Couple pics for reference.
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06-07-2018, 09:33 AM
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#3
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Bus Geek
Join Date: May 2014
Location: West Ohio
Posts: 3,708
Year: 1984
Coachwork: Bluebird
Chassis: International 1753
Engine: 6.9 International
Rated Cap: 65
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If your roof is already white, there isn't much more paint wise that you can do. Maybe a high gloss white or a chrome?
I'm leery of the "ceramic bead" paints and there usefulness.
As far as insulation goes, most skoolies come normally with thin fiberglass batting. Foam is a better choice but a lot more work.
If you're already white and still battling heat, I'd suggest more ventilation.
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06-07-2018, 10:03 AM
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#4
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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There is a member here that did a pretty thorough comparison of various roof coatings.
Hopefully someone can point it out here. As often as this subject comes up, it should be a sticky.
His results showed that making the roof white accounted for the biggest improvement. What kind of coating he use made a little difference but not huge.
The ceramic beads performed slightly better than white paint with sawdust mixed in.....
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06-07-2018, 11:32 AM
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#5
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Bus Geek
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 10,482
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
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I'm probably going to go with Henry's because they offer it in more than just white. I want a paint scheme that will hide itself in the woods without being came. Henry's makes a Tan color cool coating I will be using. I doubt the color difference makes any difference in it's cooling performance.
https://us.henry.com/roofing/reflect...n-roof-coating
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06-07-2018, 01:18 PM
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#6
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Bus Nut
Join Date: Sep 2017
Location: Damascus, OR
Posts: 681
Year: 2004
Chassis: International
Engine: T444e w/ 2000 Allison Trans
Rated Cap: 35
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Quote:
Originally Posted by o1marc
I'm probably going to go with Henry's because they offer it in more than just white. I want a paint scheme that will hide itself in the woods without being came. Henry's makes a Tan color cool coating I will be using. I doubt the color difference makes any difference in it's cooling performance.
https://us.henry.com/roofing/reflect...n-roof-coating
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o1marc I am planning a desert sand color for my bus for same reasons, but my roof is already white so I was going to leave it, but now that I see this product, I might do the roof too!
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06-07-2018, 04:56 PM
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#7
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Bus Nut
Join Date: Mar 2016
Location: Greater Houston, Tx.
Posts: 589
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ECCB did the comparative test, (not sure which thread) and his results were that a bright white roof paint was as good, or better than the elastomeric paints. He sampled several paints, on the same material, to get his results.
I have wondered if a white elastomeric paint used on the interior, topped by a bright white exterior paint, would gain any R value. Seems to me that it should.
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06-07-2018, 06:36 PM
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#8
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Bus Nut
Join Date: Oct 2016
Location: NY
Posts: 774
Year: 2002
Coachwork: International
Engine: dt466
Rated Cap: 65C-43A
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And I believe that ECCB said that flat white was the way to go. Don't quote me, I could be wrong. It's been a while but that's what I recall.
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06-07-2018, 08:36 PM
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#9
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by PNW_Steve
There is a member here that did a pretty thorough comparison of various roof coatings.
Hopefully someone can point it out here. As often as this subject comes up, it should be a sticky.
His results showed that making the roof white accounted for the biggest improvement. What kind of coating he use made a little difference but not huge.
The ceramic beads performed slightly better than white paint with sawdust mixed in.....
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I thought it was the sawdust that performed the best.
But yeah just making it white is 98% of it. The rest is a bit of smoke and mirrors.
I vote for more ventilation and insulation!
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06-07-2018, 08:37 PM
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#10
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by tobeamiss
And I believe that ECCB said that flat white was the way to go. Don't quote me, I could be wrong. It's been a while but that's what I recall.
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YES! Flat white is the most reflective.
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06-07-2018, 08:38 PM
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#11
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by 1olfart
ECCB did the comparative test, (not sure which thread) and his results were that a bright white roof paint was as good, or better than the elastomeric paints. He sampled several paints, on the same material, to get his results.
I have wondered if a white elastomeric paint used on the interior, topped by a bright white exterior paint, would gain any R value. Seems to me that it should.
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Nah that wasn't me. I'd quoted it a few times.
SuperDave and I did some testing of different colors and surfaces with an infrared thermometer and flat white paint was the coolest surface we could find on a bright sunny day.
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06-07-2018, 10:36 PM
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#12
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Bus Nut
Join Date: Mar 2016
Location: Greater Houston, Tx.
Posts: 589
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Well I got your name right. That's pretty good since I am a flat (broke) white guy. I had forgotten about the saw dust part.
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06-07-2018, 10:40 PM
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#13
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Bus Nut
Join Date: Mar 2016
Location: Greater Houston, Tx.
Posts: 589
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Any thoughts on the interior elastomeric paint with flat white on the outside?
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06-11-2018, 01:57 PM
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#14
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New Member
Join Date: May 2018
Location: Rocky River Ohio
Posts: 9
Year: 95
Coachwork: BlueBird
Chassis: TC2000
Engine: 5.9 Cummings
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I went with Henry's. Seems to be a great flat white finish with nice coverage. Bonus is it rolls on very easily and sets fast. Got mine at the local Home Depot
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06-16-2018, 03:45 PM
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#15
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New Member
Join Date: Feb 2012
Posts: 2
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I have a 1976 Newell Bus: I am several years into having painted the roof with Elastek 125 roof paint (which I also have on my flat roof house) in Arizona; Elastek is very solar-reflective and way more effective than any regular white paint and drmatically cheaper than rubberized RV roof paint and I suspect more solar-reflective as well. And I have inside of all windows 1 inch foam-removable. My inside temperature never exceeds the outside temperature while sitting (with no AC etc.)
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06-16-2018, 03:56 PM
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#16
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New Member
Join Date: Nov 2016
Posts: 3
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Elastomeric paint
I used an elastomeric paint on my roof, the inside temp dropped by 15 degrees almost immediately. It is late though and was really showing the dirt after a few days, so I painted over it with Rust-Oleum white. It works great!
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06-17-2018, 10:07 AM
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#17
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Skoolie
Join Date: Jul 2015
Location: Manitou Springs, CO
Posts: 219
Year: 1991
Coachwork: Ward
Chassis: International 3800
Engine: DT466
Rated Cap: 65 passenger
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06-17-2018, 10:42 AM
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#18
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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I had trouble with the link. Try this one : http://www.skoolie.net/forums/f13/in...se-9291-4.html
Jazty's test starts around Page 4 - post 38.
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06-21-2018, 03:26 PM
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#19
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Bus Nut
Join Date: Feb 2007
Location: Middle Tennessee
Posts: 264
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Again, I will say it: Adding 3M glass bubbles to your regular paint makes a difference. Fillers
I drive a bus for a living and I can tell the difference. It's not a huge difference but it's noticeable.
For $10 plus shipping it's not a big deal.
__________________
Daddy, can we go on a trip again??
'85 Thomas SafTLiner RE
3208 NA CAT MT643
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06-21-2018, 04:36 PM
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#20
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by curtice99
I used an elastomeric paint on my roof, the inside temp dropped by 15 degrees almost immediately. It is late though and was really showing the dirt after a few days, so I painted over it with Rust-Oleum white. It works great!
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Regular white paint will have similar results. The dirt, yellowing, and peeling are why some of us avoid rubberized coatings.
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