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Old 08-07-2015, 08:36 PM   #51
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Join Date: Dec 2014
Location: Florida
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Year: 1988
Coachwork: Blue Bird
Chassis: I.H.
Engine: DT360
Paints here in FL tend to turn chalky, fade and peel no matter how nice you are to them. Clear coat, wax, etc. doesn't make much difference. It won't last. That is why I bought cheap paint for the first paint job. Roll it on and plan to redo it in time. They sell rolls of a vinyl over rubber roofing material (PeelnSeal is one) that is supposed to protect against leaks. Shoot, house roofs done with 30yr shingles may last 12-15 before the gravel is gone and shingles are cracked/broken. It just happens and insulating the attic and using more than the recommended vents will not be enough. I try to be realistic and assume the worst, hope for the best and keep smiling.
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Old 08-07-2015, 09:13 PM   #52
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Originally Posted by rvingoffgrid View Post
i spray foamed my bus so i didn't have to worry about roof color, but in the past we use acme super barrier with a non skid top coat. ace hardware carries it
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Old 09-07-2015, 01:16 AM   #53
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I live in AZ and have paint many a roofs with elastomeric. I am wondering if anybody HAS actually done the sawdust elastomeric thing on the roof of a skoolie? I am seriously thinking about mixing sawdust in the next time I got to do the roof.
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Old 10-17-2015, 12:43 PM   #54
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Join Date: Aug 2015
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Year: 2002
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Engine: Cat 3126
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Originally Posted by CaptainInsaneo View Post
I live in AZ and have paint many a roofs with elastomeric. I am wondering if anybody HAS actually done the sawdust elastomeric thing on the roof of a skoolie? I am seriously thinking about mixing sawdust in the next time I got to do the roof.
will dust and dirt build up easier on a rough surface? Considering the surface is rough from the added saw dust? The dirt will then make the roof darker and be less effective
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Old 10-23-2015, 11:12 AM   #55
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Join Date: Oct 2015
Location: Alta Ca.
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Year: 1995
Coachwork: Thomas
Chassis: MVP SAF T LINER0
Engine: cat
I'm using both. The elasto. Just went over the rivets and the seems then painted the rest white.
And I found a gallon at Home Depot for the elasto. Seeing how I wasn't doing the whole roof 5 gallons would be a waste.
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Old 05-23-2016, 11:48 AM   #56
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Join Date: Apr 2015
Location: AZ
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Year: 92
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Engine: 8.3 Cummins
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Originally Posted by Piersg View Post
Interesting and timely thread as I'm about to move on to working on the roof.

Is there an added benefit to spending the money and going with a 100% Silicone roof covering like Henry's Tropi Cool versus a standard elastomeric coating? I noticed the Tropi cool comes with a lifetime warranty versus a 10yr for the elastomeric stuff, but there is quite a bit of difference in price.

Silicone Roof Coating - Henry Company
I just got off the phone with a Henry's rep. I was asking about the difference between 287, 587, 687. When he asked what it was for and I told him (bus), he said that the 287 was not the product to use because it was latex based and would result in a powdery residue coming off the application. While this may be fine for a roof, this would be a mess on a vehicle (his words).

He recommended using 887HS TROPI-COOL

While it's more expensive, the 887 is a sillicon based product and should not require the primer base layer that the 287 does (287 might not actually require primer in all cases but im not sure about that). Also, the 887 goes further with 1-2 gallons/100sq-ft vs. 2-3 gallons/100sq-ft of the 287. Also the 887 looks to be longer lasting.

That being said I'm considering the 887 since it looks to be close in price when adding in all considerations. Have folks who used 287 noticed the powdery residue he was talking about. Was it a problem?
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