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Old 04-16-2016, 04:06 PM   #1
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Fiberglass roof

What is the best way to maintain a fiberglass roof ?

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Old 04-16-2016, 04:09 PM   #2
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It seems like fiberglass roofs are pretty much maintenance-free, except for maybe keeping it clean! Ours is 14 years old and still in great shape!

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Old 04-16-2016, 05:08 PM   #3
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No maintenance required other than inspect for damage such as from low hanging tree limb and repair any physical damage from that to the gelcoat layer with eternabond tape or lap sealant. Maintain the sealed joints with front and rear caps and around vents etc.

OK to clean it with any non-abrasive mild cleaner.
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Old 04-16-2016, 05:24 PM   #4
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The fiberglass roofs are gelcoat?
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Old 04-16-2016, 05:42 PM   #5
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Originally Posted by dan-nickie View Post
The fiberglass roofs are gelcoat?
Mine is! (1997 Allegro Bus)
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Old 04-16-2016, 05:51 PM   #6
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I clean mine twice a year with baby bath/shampoo and vinegar, and then treat with 303 Protectant (including vent covers, AC shrouds, etc) ... also do the slide covers. Good advise on a previous post to check all seams carefully ... it's a sure bet that it will pay dividends ... safe travels ...
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Old 04-16-2016, 06:29 PM   #7
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The fiberglass may be maintenance free, but the seams and openings are caulked like any other type of roof and need periodic inspection and touch-up.

Most fiberglass roofs are painted and the paint may deteriorate even though the fiberglass does not. Chalking is not unusual after several years. Dicor makes a good fiberglass roof paint if yours ever needs to be re-painted.
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Old 04-16-2016, 06:29 PM   #8
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A person that has a fiber glass roof should apply a coat of wax to protect it from the sun. If not the sun will eat her up. I go to Wal-Mart and buy liquid Blue Coral and just apply it all over the roof. You do not have to polish it up like you do the side walls, this is just to protect it from the UV rays.

I used to get up on top years ago and check the caulking, but since I Eternabond all the seams, I never have to worry about caulking. Wife was always scared I might get dizzy and fall off the coach and that would be curtains for sure. So I do not get up there much anymore.
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Old 04-16-2016, 06:36 PM   #9
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I sprayed my BriteTek roof on the '02 Dutch Star with 303 after cleaning it. Going to do the same with the present fiberglass roof too.
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Old 04-17-2016, 06:47 PM   #10
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Fiberglass roof maintainance

Thanks for the input. I have a 2014 sun star 31 ke .The roof looks like filon not gell coat.
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Old 04-18-2016, 07:21 AM   #11
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Roof Maintenance required every 6 months!

I found that my Winnebago requires that seams fore and aft and sealant along the roof edges be inspected, cleaned and renewed if necessary every six months. I didn't know this and found my roof partially peeled off in some high cross winds due to deteriorated sealant along the edges.
The edges are not screwed down but are pressed into a channel that runs front to back. There is an adhesive sealant applied to waterproof the joint and help secure it in place - for sure it will prevent wind from getting under roof and pulling it loose..
Cleaning is also required...waxing will make it easier to clean and reduces chalk like residue that streaks down the sides of the coach.
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Old 04-18-2016, 07:35 PM   #12
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I am new to rv's. But I have a lot of experience in auto detailing, paint, gel coat repairs and boating. Your gel coat needs to be washed and waxed annually at a minimum if garaged. If it spends all of its time outside I would recommend tri-annual or more If not you will loose you shine and end up with oxidization. Gel coat needs the oils from the wax to stay
With a boat and we put 100 plus hours on a year, 3 times a week. We wipe it down with water and white viniger to remove the hard water marks every time after we finish. Safe and works great. And clean and wax it at least twice a year but it is garaged. Usually a lot more because of the use. No real need to buff unlesssratched or rubbing Once a year at the end of season it will get a miratic acid bath and wax before putting it away for winter. Now I'm not thinking rv's need miratic acid wash but that is going to get the harshest of oxidization and hard water scum off gel coat. It is not safe for aluminum or steel so I am not recommending it as much as Only making a statement of harsh use and a cleaner that can be used under certain safety constraints for gel coat.
Gel coat is mixed with acetone to thin when it is sprayed or applied. That being said acetone is the absolute harshest chemical that can be used with a rag only to whip only to remove crud during cleaning before apply wax to seal back up. Again this is not a recommendation only a statement. Most will need nothing this extreme.
Just wash and wax it in the shade or out of direct sunlight. Get all of the wax off. Wax left on can cause damage in direct sunlight.
Gel coat and paint both need cleaned and waxed regularly.

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