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Old 08-25-2013, 06:26 AM   #1
gmtech1
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Join Date: Jun 2012
Location: dartmouth ma.
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Rust streaks on roof from ac unit

I have a 2012 premiere 29 rtpr while i was going to clean the roof i notice alot of rust steaks on the roof coming from the ac unit.is this normal ive had other trailers that never did this.the ac unit should use galvanised parts.
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Old 08-25-2013, 08:51 AM   #2
Robby9
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The path the AC water takes isusually grungy, but I've never seen rust.
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Old 08-25-2013, 09:18 AM   #3
gmtech1
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I just tryed cleaning it and it doesn't come off
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Old 08-25-2013, 09:30 AM   #4
therink
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I believe those stains are an oxidizing effect from condensate dripping from the various metals in the unit. I do clean my roof regularly but other than scrubbing with soft brush like rest of the roof, I do not try to remove the stains. If I use cleaners harsh enough to remove them, I would likely damage the membrane.
They can't be seen from the ground so I don't worry about it as long as the roof is being properly maintained.
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