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Painting my roof white
#800326 January 01st 2023 7:56 pm
Joined: Jul 2006
Posts: 88
journeyman
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journeyman
Joined: Jul 2006
Posts: 88
I've decided to paint my rusty roof white. Was thinking of using hy+l-techs Bus Kote.

https://hytechsales.com/RV-ROOF-COATING

They use it on top of school buses. Was going to lay their metal prep primer first

Has anyone had any experience with it?

Thank you,
Matt


Euphoria88
Re: Painting my roof white
Grateful_vanner #801046 January 31st 2023 12:50 am
Joined: Oct 2002
Posts: 3,601
Likes: 10
pooh-bah
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I saw a guy that did his with bedliner paint tinted white, looked great, filled in all the cracks in the gutters too, wanting to get mine done too.

Re: Painting my roof white
Grateful_vanner #801053 January 31st 2023 10:15 am
Joined: Jan 2023
Posts: 47
Likes: 13
newbie
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I painted my rusty roof white this past summer.

I used a grinder with a twisted wire cup brush to get the surface rust and removable paint off. I would be careful to not overdo it because I did get some slight warping in places which might have been caused by overheating from the grinder.
If I had to do it again/if I was worried about that I probably would get the surface conditioning tool from harbor freight or eastman instead of the grinder, but honestly the warping was really minimal and might have been caused by people walking on the roof for the last 30 years.

For coating it I thinned out some white rustoleum primer with mineral spirits and used a foam roller brush and applied 3 coats, lightly wet sanding in between.
Finished with similarly thinned out white rustoleum enamel rolled on and I think I did 4 or 5 coats? I got a little greedy on the 2nd to last coat and thinned it out too much and ended up getting some bubbles that I had to sand down more than I wanted to, but it came out surprisingly well.

Seems like you're going for a more heavy duty finish, but I'll try and post some before and after shots

Re: Painting my roof white
Grateful_vanner #801054 January 31st 2023 10:25 am
Joined: Jan 2023
Posts: 47
Likes: 13
newbie
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Attached the before during and after photos

Attached Files
before.jpg (184.79 KB, 87 downloads)
during.jpg (172.99 KB, 88 downloads)
after.jpg (109.15 KB, 83 downloads)
Last edited by BVRPLZR; January 31st 2023 10:35 am.
3 members like this: loganX, CatFish, Wedgy
Re: Painting my roof white
Grateful_vanner #801071 January 31st 2023 11:46 pm
Joined: Aug 2002
Posts: 18,536
Likes: 135
Supreme Master
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Looks great.


[Linked Image from i.imgur.com]

Arianrhod:2003 Chevy Astro
Black Magic: 1985 Dodge B-250
Serenity:1985 Chevy G-20
The Outcast:1983 Ford club wagon
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Re: Painting my roof white
Grateful_vanner #801072 February 01st 2023 3:13 am
Joined: Apr 2010
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veteran
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I bought the hytek powder to turn my own paint into the alphaomega superduper insulating paint some 12 years ago

All it did was make my paint( rustoleum marine 'topside' yacht enamel) into 120 grit sandpaper. I tried all sorts of different ratios and amounts of thinner and application methods, and all of em made me hate and regret my purchase, and fill me with a rage that 12 years has only attenuated slightly.

I could imagine if somehow all the vacuum filled bubbles could actually form a uniform layer with no gaps, it would insulate enough to make a slight difference. In reality there is no measurable difference, other than a non slip impossible to clean surface that loves to trap acidic or perhaps basic dust and freeway fallout and degrade the paint itself faster than otherwise.

I truly regret the purchase, its employment, and the results, even after many light sandings and repaintings, its still rough, and difficult to get even a 50 foot job from.

I preferred other methods too, when i wanted a no slip surface too.

Marketing wins again.
Reality only proves that once again, ignorance is bliss, and the Placebo effect is very real.

1 member likes this: Wedgy
Re: Painting my roof white
Grateful_vanner #801074 February 01st 2023 11:29 am
Joined: Nov 2013
Posts: 2,286
Likes: 153
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veteran
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Take Heart! Iron Man. Your 1989 B250 is a Role Model. Y'all had some epic Tasty Waves there! Swami's dreaming.

All I know is I like my fibreglass caps on both my B vans.

The two tone Chevy, dark and light blue metallic, needs paint. Texas is brutal on paint. I thought about a white roof. And insulation over my head behind the paneling overhead. The drivers seat in the B vans is much cooler overhead.

I would definetly go white on the roof, but I'd start higher up off of the drip rails and windshield, like 6 inches or so, to have a blue perimeter. So you would see the dark blue on the roof from a standing height, and not the stealth white roof! Gday!


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Re: Painting my roof white
Grateful_vanner #801096 February 02nd 2023 1:34 am
Joined: Jul 2019
Posts: 11,241
Likes: 411
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BVRPLZR : looks great. What a difference

Re: Painting my roof white
BVRPLZR #802229 March 15th 2023 11:45 pm
Joined: Mar 2017
Posts: 38
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Originally Posted by BVRPLZR
Attached the before during and after photos
Great results! We'll start the body works on my friend's new van after installing the brake pads and tires from 4Wheelonline this weekend. We'll deal with rust first.


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