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Open Roads Forum  >  Class A Motorhomes

 > Fiberglass Roof. To Paint or not to Paint...

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vacuumbed

Salt Lake City, Utah

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Posted: 04/12/12 02:56am Link  |  Print  |  Notify Moderator

I have been thinking about painting the fiberglass roof on my 96 Monaco with a good quality white roll on roof type paint. Currently there is no paint on it.

Is this a worth while upgrade or just a waste of money?

Dale.Traveling

Newport News, VA

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Posted: 04/12/12 04:53am Link  |  Print  |  Notify Moderator

I would consider using a truck bed liner coating. Super hard, non-slip, seals, and will outlast the coach. It isn't cheap but you will never have to think about it again. Personally I would rather pay more and do it once.

I would do it or at least add it to my coach improvement bucket list.


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bugs53

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Posted: 04/12/12 05:25am Link  |  Print  |  Notify Moderator

I am going follow this topic. I am not sure what paint would do on the fiberglass with out a clear coat finish. I would think the fiberglass would just show oxidation, but never deteriorate.

Bugs


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RSchleder

iowa city, ia

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Posted: 04/12/12 05:38am Link  |  Print  |  Notify Moderator

I have to wonder if the roof doesn't flex a bit and any paint would tend to crack and even peel. What exactly are you trying to accomplish with paint, the gelcoat on the fiberglass gives it a weather resistant coating that will last long after the coach is put to rest.

harold1946

Surprise Arizona

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Posted: 04/12/12 07:11am Link  |  Print  |  Notify Moderator

vacuumbed wrote:

I have been thinking about painting the fiberglass roof on my 96 Monaco with a good quality white roll on roof type paint. Currently there is no paint on it.

Is this a worth while upgrade or just a waste of money?


If there is no paint on it, it has to be gelcoat. To apply paint to gelcoat the entire surface would need to be wet sanded with 400 grit to insure a good bond.
If it is gelcoat and all you want to do is restore the finish, I suggest using a polishing compound followed by a UV protectant.
In my opinion It would be a waste of money to paint a ferfectly good roof and have the same oxidation issue.


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wa_desert_rat

Central Washington State

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Posted: 04/12/12 08:36am Link  |  Print  |  Notify Moderator

Gelcoat is generally much stronger than paint because it is part of the f/g roof. Once you paint it you are stuck with paint. Installing anything on that roof with very-high-bond tape (like solar panels, etc.) will be impossible because the paint does not stick like the gelcoat does. (And, yes, Virginia, you *can* mount solar panels with tape!).

I have a f/g roof and I intend to keep it sealed and covered with solar panels.

Craig

Bumpyroad

Virginia

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Posted: 04/12/12 09:23am Link  |  Print  |  Notify Moderator

vacuumbed wrote:



Is this a worth while upgrade or just a waste of money?


I would not consider this to be an "upgrade".
bumpy





deandec

Northern CA

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Posted: 04/12/12 10:30am Link  |  Print  |  Notify Moderator

Some folks are using Bus Kote to paint their roofs. Supposedly some heat insulation value.


Dean
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SoakedKarma

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Posted: 04/12/12 04:56pm Link  |  Print  |  Notify Moderator

I painted mine 2 years ago with Nason Ful-Thane 2K Urethane which is a 2 part paint. after 20 years of neglect entire coach needed a paint job when I bought it. yes their is a bit of flex in the in the roof when walked on which I do quite often with no paint cracking or chipping.. Good Wet sanding is a Must..

If you have any micro cracking/Crazing or spiderwebbing in the gelcoat they can be filled with medium to thick Cyanoacrylate "Super Glue" and sanded smooth prior to painting.. I used thin Cyanoacrylate available at hobby shops to wet the micro cracks using pinstripe brush and topped off with a very thin bead of the thick.. It was a tedious task. Clean brush w/acetone.. Body fillers will not do the job trust me.

The bed liner idea would have interested me had it come in the tan/sand color i wanted..

Best of Luck

vacuumbed

Salt Lake City, Utah

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Posted: 04/12/12 05:12pm Link  |  Print  |  Notify Moderator

The fiberglass roof now shows oxidation, so it's not glossy. The full body paint that comes up on the edge of the roof is glossy.

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