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Old 07-18-2007, 09:48 PM   #1
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Roof vents leak...

Greetings from sunny muggy Florida!
As we all know; Florida rains every day in the summer. Joy. I am currently full timing in my 31' 1974 Soveriegn. For obvious reasons I have noticed a small problem. The lights in my dining room and bathroom are filling with water. They are the big rectangular 12volt lights with ventalation. I believe the water is entering through a bad seal.
My goal is to take the assembly apart nd remove the old seal with a razor etc. then use some good old #III silicone. I hope this will resovle the problem and prevent further water damage. however the people here on A/Sforums may have some better suggetions on tackling the problem.
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Old 07-18-2007, 09:48 PM   #2
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Thank you in advance!
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Old 07-18-2007, 10:10 PM   #3
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The vent fans on my '77 Excella 500 31' had foam rubber seals on the inside of the vent hood. They were all shot, I replaced them but no water ever leaked into the interior prior to the seals being replaced. I'd say you may also have Vulkem that has cracked, chipped or fallen off on the outside of the trailer around the vent. It may be time to scrape it off and recaulk with Vulkem, Trempro or Sikaflex.
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Old 07-18-2007, 10:59 PM   #4
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Don't ever use silicone on the exterior of an airstream. Use Vulkem.
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Old 07-19-2007, 12:17 AM   #5
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Quote:
Originally Posted by SLVRSRFR
Greetings from sunny muggy Florida!
As we all know; Florida rains every day in the summer. Joy. I am currently full timing in my 31' 1974 Soveriegn. For obvious reasons I have noticed a small problem. The lights in my dining room and bathroom are filling with water. They are the big rectangular 12volt lights with ventalation. I believe the water is entering through a bad seal.
My goal is to take the assembly apart nd remove the old seal with a razor etc. then use some good old #III silicone. I hope this will resovle the problem and prevent further water damage. however the people here on A/Sforums may have some better suggetions on tackling the problem.
There are two sources of leaks from your vent covers.

The first is probably the gasket is shot.

The second is if your vents are metal and have a plastic center piece, that plastic in time fails. Or if your vent covers are all plastic, they could be cracked.

You might also check your window and entrance door gaskets as well as the access compartment door gaskets. If they are the originals, most of them will leak especially when you tow or are in a driving rain.

Plus, the # 1 hidden gasket that fails, since it only lasts 5 years or so, is the sewer vent pipe gaskets. You will have to remove one of those covers to check it out.

Andy
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Old 07-19-2007, 10:16 AM   #6
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Thank you for the advice guys. Vulkem got it... No silicone. Good thing I asked. What can I say... Im a nOOb. Be safe out there!
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Old 07-19-2007, 12:37 PM   #7
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Quote:
Originally Posted by mello mike
Don't ever use silicone on the exterior of an airstream. Use Vulkem.
I have used some silicon. Should I get it off?
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Old 07-19-2007, 12:41 PM   #8
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I have used some silicon. Should I get it off?

Faster than yesterday.

The sun will make the silicon sealer release. That created a chemical barrier, that must be chemically cleaned so that you can use the correct sealer.

Never, ever, use silicone sealer on the outside.

Andy
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Old 07-19-2007, 12:54 PM   #9
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Quote:
Originally Posted by Inland RV Center, In
Faster than yesterday.

The sun will make the silicon sealer release. That created a chemical barrier, that must be chemically cleaned so that you can use the correct sealer.

Never, ever, use silicone sealer on the outside.

Andy
Hi Andy,

Yes, I have silicone on my 67. In my defense, it was in the mid-80s, no forums for advice. I've been very lucky so far, but could you expand on the chemical cleaning after removing the silicone? I will fix it correctly.

Vaughan
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Old 10-01-2007, 04:11 PM   #10
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Can you use eternabond products on Airstreams (i.e., their tape etc)?
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Old 10-01-2007, 05:21 PM   #11
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Thumbs up Sewer Vent Leak

Quote:
Originally Posted by SLVRSRFR
Greetings from sunny muggy Florida!
As we all know; Florida rains every day in the summer. Joy. I am currently full timing in my 31' 1974 Soveriegn. For obvious reasons I have noticed a small problem. The lights in my dining room and bathroom are filling with water. They are the big rectangular 12volt lights with ventalation. I believe the water is entering through a bad seal.
My goal is to take the assembly apart nd remove the old seal with a razor etc. then use some good old #III silicone. I hope this will resovle the problem and prevent further water damage. however the people here on A/Sforums may have some better suggetions on tackling the problem.
This is what I found while cleaning the roof....CHECK THAT SEWER VENT!!

http://www.airforums.com/forums/f456...ent-35651.html
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Old 10-01-2007, 06:12 PM   #12
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My trailer had silicone on it from a previous PO. I removed it on Saturday using a product called "Indoor/Outdoor caulk remover" by 3M. It comes in a squeeze bottle and looks like white wood glue.
It seems to work by loosening the bond to the aluminum, the silicone stays intact. A plastic putty knife under the edges pulled it right up. Works great.
Dave
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