Stain on roof

[pokypa]

Washing Big Horn today and notice a stain on the side of the rubber roof. Looks brown like a pollen stain and it won't come off. I know you don't want to put anything to strong or it will damage the roof.
Anyone have a way to clean the stain or should I just forget it.

 

[donr827]

I have some stains due to the air conditioner run off. I just wash them with Simple Green when I wash the roof. Never perfectly clean but being the top of the roof and out of sight OK with me...........Don

 

[brianharrison]

If it is EPDM rubber roof, Dicor (maker of EPDM for RV roofs) has a good online resource --> Rudy's Expert RV Roof Care Handbook.

I see that some of the Citrus based cleaners can also be of concern to some roofs - in addition to anything that has petroleum based solvents in the cleaner.

I have used the 3% hydrogen peroxide in the past on some bad staining. Otherwise I regularly use original Dawn dish soap in water with a bristle brush and some elbow grease.

Hope this helps,
Brian

Brian

 

[wms]

We cleaned the roof of our Silverado this week and both air conditioners are leaving ugly brown streaks. We used Dawn dish liquid with a squirt of bleach along with direct spray from a bottle of rubber roof cleaner and nothing seemed to clean these stains. I would like to remove these ugly stains but I'm more concerned with harm to the roof from harsh cleaners. We've only had it for 3 months and this is its first cleaning. Is this a normal issue with the air conditioners? We've never had this issue with our previous travel trailers and don't know what to do about it.

 

[DuaneG]

I have had mine for a couple years and it never looked that bad. Not sure why it's so bad.

 

[wms]

We contacted Heartland customer service via email. We heard back from them the next day and they requested pics. I sent them several of the roof and the inside of the main air conditioner. Hopefully they can help us figure it out.

 

[Birchwood]

Most of the high ,high end rig s have done away with A/C runoff on the roof and route it down an inside pipe.I have had these brown stains on the roof of our Landmark since day one.

 

[TandT]

We have a fair amount of staining from the A/C, although not quite as bad as yours. I remove most of it with Dawn dish soap and a soft brush. If it is really bad I will spot clean with Camco roof cleaner purchased from Wallyworld.

I think a lot of it has to do with the environment you are in. Humid means more runoff. Humid and dusty or dirty, means more stain in the runoff.

I agree with Birchwood, I suggest HL put a pan with a drain hose under the A/C. It could be routed over the edge of the roof, or down to the underside the rig. This would be an inexpensive improvement and good sales tool. Trace

 

[Donhutch1800]

That's looks like a rust stain to me.

 

[tweber]

My previous big Horn started to stain like that. I took the AC cover off and found leaves and bark that was causing the stains. I clean up the mess and no more severe staining, but I was not able to completely remove the stains. Dirt blowing around, on the AC and on the roof may also cause streaking and stains. Good luck and safe travels.

 

[jdamude]

Washing Big Horn today and notice a stain on the side of the rubber roof. Looks brown like a pollen stain and it won't come off. I know you don't want to put anything to strong or it will damage the roof.
Anyone have a way to clean the stain or should I just forget it.

We had the same stains on our roof. I was trying to clean them on the weekend and could not get them cleaned off. My wife suggested Magic Eraser. We gave it a try and they removed the A/C stains completely.

 

[rxbristol]

We had the same stains on our roof. I was trying to clean them on the weekend and could not get them cleaned off. My wife suggested Magic Eraser. We gave it a try and they removed the A/C stains completely.

Nice!

 

[jassson007]

Be careful with the magic erasers. I used one to remove glue from dealer sticker and scratched up my gel coat.


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[GOTTOYS]

Simple solution is....Don't wash the roof....It does nothing but remove the wear layer on the rubber roof. Does it really matter if it's clean or not? I didn't wash the rubber roof on my last park trailer in 10 years. Nobody saw it or cared. The roof was still in good shape when I sold it. As the roof ages a small amount of rubber dries out and turns to powder on the surface. It just lies there if undisturbed and protects the rubber underneath it. I chose to just leave it alone.....Don

 

[jassson007]

Yes but where it rains it washes down the sides and creates drip marks and black streaks that are harder to clean off.


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[murry135]

Wash and treatment is needed I feel to maintain a healthy product. Some marks will never come totally out. I stay away from heavy detergent products and just use Dawn and elbow grease.