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Old 07-23-2011, 09:27 PM   #1
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Want to paint my roof white..

Will a paint job make it cooler?
1988 Excella. I would like to paint my roof a bright, gloss white to reduce temperatures. Have read one of Andy's posts detailing the process they use. I like the idea of sanding and not etching. I do not want to have to be a paint expert

Looking at a marine paint store (Jamestown, I think), it looks like the following should work:

Awlgrip 545 epoxy primer

Interlux 1 part polyurthane enamel. Gloss white.

Both are fairly inexpensive as these things go, $30 or so bucks a quart.

I have a spray rig and can use it, but would prefer to use a brush or roller on the roof. I see in the video they are using a roller on the boat for the Interlux. I have an awning on each side, so I am thinking of painting from awning rail to awning rail and stopping at the edge of the end caps.

Questions are, will the above work with some sanding of the aluminum for preparation. Can someone suggest a better paint system? Is there a reason not to paint the roof? The clear coat on this one is pretty rough on the roof but is okay on the sides.
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Old 07-23-2011, 11:16 PM   #2
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I know nothing directly about this, but I saw a post earlier today talking about a product called Ceramiflex.

http://www.airforums.com/forums/f516...ml#post1022356
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Old 07-23-2011, 11:19 PM   #3
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Sounds like a good idea! I think the new airstreams come from the factory with the roof painted white.
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Old 07-23-2011, 11:19 PM   #4
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Im about to do mine with Supertherm

Painted the dark grey shingle roof on our building with it - dropped the surface temp 50%

http://www.spicoatings.com/products/supertherm/
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Old 07-23-2011, 11:21 PM   #5
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Quote:
Originally Posted by Bill M. View Post
Will a paint job make it cooler?
1988 Excella. I would like to paint my roof a bright, gloss white to reduce temperatures. Have read one of Andy's posts detailing the process they use. I like the idea of sanding and not etching. I do not want to have to be a paint expert

Looking at a marine paint store (Jamestown, I think), it looks like the following should work:

Awlgrip 545 epoxy primer

Interlux 1 part polyurthane enamel. Gloss white.

Both are fairly inexpensive as these things go, $30 or so bucks a quart.

I have a spray rig and can use it, but would prefer to use a brush or roller on the roof. I see in the video they are using a roller on the boat for the Interlux. I have an awning on each side, so I am thinking of painting from awning rail to awning rail and stopping at the edge of the end caps.

Questions are, will the above work with some sanding of the aluminum for preparation. Can someone suggest a better paint system? Is there a reason not to paint the roof? The clear coat on this one is pretty rough on the roof but is okay on the sides.
My 2005 has a white roof from the factory. I wouldn't bother with the spray, roll and tip the Interlux, it will lay out flat and a quart should be enough. I have done a couple of boats with it over the years and it works great.
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Old 07-23-2011, 11:25 PM   #6
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We had a houseboat on the Sacramento Delta for 25 years. After we got the boat I painted the roof white. Not "off white" or anything like that, but white white. The boat was much cooler inside, and the roof could be walked on in the summer sun without shoes. If it became dusty, it got hot. I used to wash the roof before every outing.

I don't see why that would not be the same with your Airstream. The factory has been painting the center panels of the roof white for some years now.

Walk up to a black and white police car in the sun and check the difference between the black and white.
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Old 07-23-2011, 11:48 PM   #7
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I know directly about this...ref DKB .... above.....I used Ceramiflex white. It goes on great with a roller.....it flows out smooth with no ugly lines and actually seals as well. Mask the edges for a nice job. It makes a big difference
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Old 07-24-2011, 12:03 AM   #8
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Another option is to use an elastopmeric roof coating such as Kool Seal. I did that several years ago and it was very good. Unfortunately I found it impossible to find during my travels in NY, PA and MI even thouigh their website listed many Home Depots in those states selling it. Everytime I went to one of the listed stores they said they no longer sold the product.

I am about to recoat using Jetcoat (from Home Depot-$28) which says it will provide a 7 year protection, goes on with a roller, spray or brush and dries bright white. The container also says 'Cool King'.

Had to clean the old paint using 1 part bleach to 3 parts water which really cleaned it up well. If you do this ensure you spray fresh water on the trailer skin and then wash off the bleach/water drips before they dry.

Looking forward to a 'cool' summer.
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