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Old 10-05-2006, 02:18 PM   #1
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Paint Roof White

I have seen and read about painting the roof white to reduce internal temps. I have a couple of questions:

1. What does Airsteam use? What kind/type of paint?

2. Has anyone else done this and what do you recommend?

3. Has anyone contemplated the white spray on -do it yourself pickup truck bedliner polyureathane stuff?

Thanks
Trevis
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Old 10-05-2006, 02:22 PM   #2
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Check my thread "Airstream One wears a white hat." I would not recommend the spray on liner material. It will hold and show dirt.
I used Interlux Brightside and brushed it to a high gloss finish with the aid of slow trying brushing thinner also from Interlux.
It did make a difference.
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Old 10-05-2006, 02:42 PM   #3
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hi trevis

the factory uses prefinished panels...
the white is applied by alcoa for the top panels.
it is a very thin layer but supposed to be very durable...

we shall see

cheers
2air'
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Old 10-05-2006, 02:45 PM   #4
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Quote:
Originally Posted by trevisgardne
I have seen and read about painting the roof white to reduce internal temps. I have a couple of questions:

1. What does Airsteam use? What kind/type of paint?

Thanks
Trevis
I have followed this topic closely and will soon paint the roof on our '76 Sovereign. That being said, I would never use what Airstream uses. On our 2000 it tended to chalk and stain the aluminum skin on the sidewalls when it rained.
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Old 01-17-2008, 07:22 PM   #5
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Old thread, but...

My new to me 2000 Safari has a lot of chalking from the roof as well. When I washed it, the water draining from the roof was white.

Is this common to all years that have a white roof or limited to some years?

I would assume that waxing will help limit this.

Dave
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Old 01-17-2008, 09:05 PM   #6
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Dave,

I'm up on MoHo roofs every day. Most have either pre-enameled aluminum roofs like A/S uses, or have some other type of white roof finish ( other than white rubber EPDM roofing).

Many of them chalk up when walked on and streak like you describe. The ones that don't have been regularly waxed. If yours is beginning to chalk, use a 2 step: polish, then final wax. It will have a nice gloss on it and should not chalk.

I do this on the white-finished roof of my '06 CCD. Still shiney and no streaking!!
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Old 01-17-2008, 09:11 PM   #7
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Lew I appreciate your help, I'll give that a shot.
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Old 04-26-2008, 07:05 PM   #8
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Quote:
Originally Posted by lewster
Dave,

I'm up on MoHo roofs every day. Most have either pre-enameled aluminum roofs like A/S uses, or have some other type of white roof finish ( other than white rubber EPDM roofing).

Many of them chalk up when walked on and streak like you describe. The ones that don't have been regularly waxed. If yours is beginning to chalk, use a 2 step: polish, then final wax. It will have a nice gloss on it and should not chalk.

I do this on the white-finished roof of my '06 CCD. Still shiney and no streaking!!
Sorry to hijack the thread, but since it's been inactive for awhile ....
I have an Argosy with a white roof (po painted the rest of the trailer). I have some of this Premium White Elastomeric Roof Coating - Gallon - Camping World
hanging around and was thinking I would brush it on the small white section of the roof. What do you think? thanks in advance.
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Old 04-26-2008, 08:08 PM   #9
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Quote:
Originally Posted by thatismytruc
Sorry to hijack the thread, but since it's been inactive for awhile ....
I have an Argosy with a white roof (po painted the rest of the trailer). I have some of this Premium White Elastomeric Roof Coating - Gallon - Camping World
hanging around and was thinking I would brush it on the small white section of the roof. What do you think? thanks in advance.
We used the white elestometric roof coating (aka kool seal) on the roof of our Argosy. It did help, and passed the ten foot test.
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Old 04-26-2008, 08:21 PM   #10
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The Kool Seal that Terry put on his (now our) 20' Argosy seems to be holding up fine. Our only problem is that the trailer was parked for quite some time under pine trees (after Terry and before us) and now it's a filthy mess. We're in the process of finishing up some body work and the trailer will off for a fresh paint job - to include a fresh clean coat of Kool Seal.
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Old 04-26-2008, 08:49 PM   #11
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We used:

Product Detail (Snow Roof)

So far, so good. It has made a marked difference and as we live in Miami, there has been ample opportunity to garner results.

Looks pretty good and it rolled on painlessly.

Mike
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Old 04-26-2008, 09:31 PM   #12
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As always Lewster is correct. The paint up there is oxidizing and you need to seal it. I personally use Rejex, but any good system like Meguires is just fine. I found I can reach 95% of the roof if I use an extension ladder with swimming pool noodles on each rail, one on each side. Just be careful it can get slippery up there. As a rule I wax the whole trailer twice a year, and the roof 3 times a year. Hope this helps. --Mark--
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Old 09-01-2008, 09:16 PM   #13
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I would guess something like a heavy elastomeric paint might also help with conductive heat transfer from the aluminum to the trailer interior.
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Old 09-02-2008, 01:00 AM   #14
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I never knew Airstream ever went to painted roofs (except on the Argosy).

Exactly when did this occur (and on what models) and did they give an official reason?
Was it optional ?

I have always just assumed the advantage in white roofing was the reflectivity. Wouldn't aluminum color have much the same effect?

I believe I read somewhere not long ago that the radiant barrier theory of in-attic shielding that is now being touted in the housing aftermarket, worked more so for its aluminum metal factor than its color factor. That a glass mirror would not "turn" the radiant heat, nor would a coating of white paint nor a sheet of white melamine (vinyl coated board).
BTW IMHO that whole theory is yet to be proven. But most sellers say they can reduce ambient temp from one side of the barrier to the other by approx 20%.
Apparently the new "angle" is the paint on stuff (from underneath roof deck). The paint apparently contains aluminum "pigment"????
but there is some debate that the only "right" way is to hang the "foil" type under the roof with some minimal stand off from the deck/rafters.
And I know that some installers used to just drape the foil on the floor of the attic the best they could, That must have been a nightmare to behold when one needed to do service in an attic so equipped..!

As I said, I am not "sold" on either method or in the whole theory as legit.
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