Rubber roof spots

[Ray and Joan Lough Participant Ridgefield,WA]

Hey all has been a while. Just completed the disconnectable power cord from Marinko and am loving it. The weather is turning great in the Vancouver/Portland area so I need to clean the RV in preparation for the new season. My question for the group: How do I get rid of the black spots on my rubber roof of my 2008 Cougar 276RKS? I’ve scrubbed with Dicor Rubber Roof cleaner but the spots remain. Any info ?
Ray#2

 

[George Participant NorCal]

I am curious what is causing the spots.  Any idea?

[Curious by Nature Participant Alberta]

If they are from tree resins, I’ve had some good results using Spray 9. You have to let it sit for a few minutes and then scrub gently, I use an old nail brush. It does leave a slight residue that you remove easily with Windex. Haven’t found anything else that works.

[George Participant NorCal]

Turpentine will remove sap.

You might also experiment with WD-40 but be careful as it will make the roof slippery.  Maybe a small patch then wash with soap (Dawn seems to be the rave) and water and rinse.  I haven’t tried it and don’t know how WD-40 will affect the roof but I have been surprised what WD-40 works on.

I’m sure others will have better suggestions.

• This reply was modified 5 days, 5 hours ago by  George.

[Ray Keymaster 15652 L St, Mojave, CA 93501, USA]

Any petroleum based products aren’t advisable, they may eat the rubber roof material.

I would guess the black spots are mold, given the rigs location. I get a bit of it in the fall before we leave Vancouver Island but the California sun soon takes care of it.

The other possibility is the black spots are the roof material itself. Rubber roofs are actually black then they are coated with a white material that slowly chalks and comes off over time.

RVHH Chief Cook and Bottle Washer - LoveYourRV.com

[Ray and Joan Lough Participant Ridgefield,WA]

I’m not sure but I suspect because we have trees around it may be mold from the tree pollen. I just keep scrubbing and treating with Dicor roof cleaner and treatment.

Thanks for the reply

Ray#2

[Ray and Joan Lough Participant Ridgefield,WA]

Is this something only in Canada? I wonder what an equivelant would be in the U.S.?

Thanks for the reply

Ray#2

[Ray and Joan Lough Participant Ridgefield,WA]

I’m real antsy about using petroleum products on the rubber roof since it is 8 yrs old.

Thanks for the reply

Ray#2

[Ray and Joan Lough Participant Ridgefield,WA]

My thoughts also. So if I keep scrubbing I will wind up with a black roof? Ha that’s novel!

Thanks for the reply

Ray#2

[Curious by Nature Participant Alberta]

Spray 9 is available from Amazon.com

http://www.amazon.com/Spray-26832-Multi-Purpose-Cleaner-Disinfectant/dp/B0014COKYU

It’s a very potent cleaner, I used to use it to clean diesel soot from combustion chambers.  Extremely effective on any kind of oil based stains, contains no petroleum. It will damage paint if left on to long.

[Ray Keymaster 15652 L St, Mojave, CA 93501, USA]

Simple Green is another good cleaner, sure does a job on black streaks, but you have to make sure that any that gets on the sidewalls of the rig gets rinsed quickly as it will strip wax. Same goes for any other harsher type cleaner. May end up with a very clean roof but all your decals peeling off.

I haven’t tried it yet but I’ve had tons of RVers recommend a product called LAs Totally Awesome cleaner found in most dollar stores.

RVHH Chief Cook and Bottle Washer - LoveYourRV.com

[Don Kline Participant East 18th Avenue Post Falls ID 83854 US]

I have used totally awesome cleaner… It left a white scum on my RV.  Took lots of work to get it off.. But it took off  all the bugs and black streaks really easy

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