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08-19-2015, 01:47 AM
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#1
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Montana Master
Join Date: Jul 2004
Location: Washburn
Posts: 591
M.O.C. #1782
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Grey Roof Spots
Washed the roof yesterday with Dawn. Those small grey spots still there. Anyone have a solution to get them cleaned off? Have tried rubber roof cleaner with no success.
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08-19-2015, 02:03 AM
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#2
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Montana Master
Join Date: May 2011
Location: Hixson
Posts: 3,436
M.O.C. #11397
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Mine has some of those grey spots also. I don't worry about them...what can they hurt?
__________________
2018.5 Montana 3791RD
Full Timers 9/1/2010 through 1/16/2020.
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08-19-2015, 02:33 AM
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#3
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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I don't worry about them either. Probably worse for the roof trying to scrub them off.
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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08-19-2015, 04:36 AM
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#4
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Montana Master
Join Date: Nov 2002
Location: Midlothian
Posts: 956
M.O.C. #40
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I use a small amt. bleach in water and wash normal and removes the spots after the sun dries it.
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08-19-2015, 05:13 AM
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#5
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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The number one purpose of cleaning the roof is to remove the EPDM oxydation the gray film.
Do not worry about the Gray Spots!
It will pass the roof inspection
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08-19-2015, 03:30 PM
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#6
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Montana Master
Join Date: Jul 2004
Location: Washburn
Posts: 591
M.O.C. #1782
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OK. Guess I won't lose sleep over it. Thanks for the help.
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08-27-2015, 08:58 AM
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#7
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Montana Fan
Join Date: Aug 2012
Location: Fowler
Posts: 414
M.O.C. #12748
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A small amount of bleach mixed with the Dawn will help reduce the gray spots after a few days of sun.
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08-27-2015, 10:31 AM
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#8
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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Was told bleach not good for the roof material.
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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08-28-2015, 02:34 PM
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#9
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Montana Fan
Join Date: Jun 2015
Location: Livermore
Posts: 321
M.O.C. #17521
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I went and cleaned my roof last weekend. It had been a long time since that was done if ever. I got the TT from a friend whose husband had passed away. I doubt he ever went up there. They only used it a few tomes. I had the black run off on the sides as well as the gray spots on the roof. I used simple green on the spots on the edge of the roof and it came relatively clean. On the roof for the initial cleaning I used my car wash soap and a soft brush I use for the car. (not any more) LOL. The roof came out clean except for the gray spots. The edge looks nice and white again. Was thinking about using a roof coating to cover the roof and make it look nice. I was quoted a price of around $6,000 to replace the entire roof. Not doing that. Here is the stuff i was thinking of using. Any thoughts.
http://www.epdmcoatings.com/rv-roof-repair.php
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08-28-2015, 03:21 PM
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#10
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Montana Fan
Join Date: Aug 2012
Location: Fowler
Posts: 414
M.O.C. #12748
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Bleach is fine, have used it mixed with soap on rubber roofs and awnings for more than 20 years on 6 different units about 2-3 times a year with no adverse effect. Had one unit 8 years.
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08-28-2015, 03:33 PM
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#11
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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What was the mix % between the bleach and soap?
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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08-28-2015, 05:24 PM
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#12
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Montana Fan
Join Date: Aug 2012
Location: Fowler
Posts: 414
M.O.C. #12748
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I use about 1/8 cup of bleach to 1 gallon of water, amount of soap is up to you.
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