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Old 02-18-2019, 12:25 PM   #1
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What's the best fiberglass roof protection

Just cleaned a very ugly roof I believe is fiberglass. Lots of mold and dirt but it all came off with a still brush and lots of elbow grease. I would like to add some protection now mostly from the Florida harsh UV. In the past I have used Aerospace 303 but wondering if there is anything else specifically for this application.
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Old 02-18-2019, 06:15 PM   #2
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A roof is the best protection!
303 should do the trick if you use it often.
I'm sure others will have ideas, so good luck.
Happy Glamping.
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Old 02-18-2019, 06:27 PM   #3
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The final post on my fiber glass roof redo:
http://www.irv2.com/forums/f258/fina...ne-316925.html
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Old 02-18-2019, 07:26 PM   #4
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I compounded the Gel coat on my entire coach including the roof. I now try to wax it 2x per year. Keeping it clean and waxing is a good habit. If you can keep it under cover or inside even better.
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Old 02-18-2019, 07:27 PM   #5
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I had this applied and will do the next coat myself. It should be done annually and so far it's great. Even with regular cleaning I had some white streaks. After this was applied nothing so far. It's a polymer so it's not slippery but does seal and protect.

RVTECH RV Fiberglass Roof RV Roof Protectant RV Roof Treatment 1 Gallon Ready-to-Use https://www.amazon.com/dp/B07D2MQXC9..._KJ2ACbABXV42A
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Old 02-18-2019, 07:35 PM   #6
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I've used 303 and Dry Wash N Guard on mine. The DWG lasts the longest.
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Old 02-18-2019, 07:44 PM   #7
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If you live in a rainy climate, I can't see 303 lasting very long up there.
I use wax.
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Old 02-18-2019, 08:29 PM   #8
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I've seen others and I myself use Turtle wax after a thorough cleaning of the fiberglass roof. Might be old fashioned but it sure looks nice and shiny. Seems to last quite a while too.
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Old 02-18-2019, 09:55 PM   #9
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Quote:
Originally Posted by FLavionics View Post
Just cleaned a very ugly roof I believe is fiberglass.
Why, do you have a dearth wish?

I know why I clean the deck of my sail boat. I walk and sit on it but will not fall to my death.

It was a happy day when I found out my first vintage HR had a fiberglass roof. I knew it was important to maintain an RV roof to keep it from leaking.

The advantage of fiberglass is it is low maintenance.

My sailboat is 40+ years old. For may years it was cleaned with a scrub brush then I got a power washer.

I have used the power washer to clean old metal roofs on TT, storage sheds, and Mobil homes before putting on a white roof coating from Lowes.

The point is working on a MH roof is dangerous and should be avoided for cosmetic reasons.
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Old 02-18-2019, 10:03 PM   #10
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Well, the reason you put something on it is, it oxidizes, then when it rains, it leaves white streaks down the sides of your coach.
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Old 02-19-2019, 07:43 AM   #11
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Quote:
Originally Posted by 96 Wideglide View Post
If you live in a rainy climate, I can't see 303 lasting very long up there.
I use wax.

I agree that 303 probably would not last long in rainy climate.

Most of the roof has a non skid finish so wax would probably not work so well as it would be hard to take off.

I think I will try what Mark suggested. RV Tech Roof Armor. But I can't find any information on how hard/easy it is to apply.
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Old 02-19-2019, 08:17 AM   #12
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I use Poly Glow on my fiberglass roof and love it. Most other products do not have UV Inhibitors in them....Poly Glow does..... I do my roof once a year and never have white streaks running down the side of the coach....

https://www.poliglowproducts.com/#/

Check it out, bought it on Amazon.com

Safe travels
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Old 02-19-2019, 08:37 AM   #13
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I also am in Florida. The first time I waxed my roof I used a paste wax. It was a bear to remove on the non-skid areas of my roof. After that, I now use Optimum spray wax. Just spray it on and a light wipe off. Gives good protection and has UV inhibitors. Spec sheet says the UV inhibitors are good for 5 months. https://www.autogeek.net/optimum-spray-wax.html
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Old 02-19-2019, 09:33 AM   #14
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Quote:
Originally Posted by followingsea View Post
The point is working on a MH roof is dangerous and should be avoided for cosmetic reasons.
Well the real point is....
There are many reasons to clean, take care of and apply different types of coatings and they are not cosmetic reasons. Reflect the suns heat to keep the RV cooler, prevent streaking down the sides of the RV...I could go on but won't.

And as always in anything, taking basic safety precautions is always a prudent thing to do.
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