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Old 10-29-2018, 09:36 PM   #1
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Question Exterior Caulk

I had to pull apart the front bunk on my 19h which included taking the metal frame apart from the actual bunk. The caulk that was there had already failed and water leaked in and rotted the bunk end from the bottom up (about 16"). All of that has been replaced and the door is back together but I ant to make sure I get it sealed up tight. I plan on doing the rear door even though it is not leaking at this time. I figure if one has started the second can't be far behind.

What caulk is recommended for the exterior where the aluminum frame meets the fiberglass exterior? The guy at my local box box gave me an exterior caulk, for houses, that is goof on 'siding' and metal. I'm not home so I don't remember which brand.

THANKS!
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Old 10-29-2018, 09:45 PM   #2
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OSI Quad caulk. Very sticky stuff.
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Old 10-30-2018, 01:47 AM   #3
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Quote:
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OSI Quad caulk. Very sticky stuff.
X2 its what Jayco uses.
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Old 10-30-2018, 05:39 AM   #4
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Steer away from big box stores when buying exterior sealing materials. Remember the advice you get is from a new guy who has little or less knowledge of rv's than you.

Get it from rv dealers or online sources that have the goods you need.
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Old 10-30-2018, 08:13 AM   #5
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Guess I'll be stopping off and getting some OSI on the way home.

I have no doubt that most of the people in the stores aren't very competent when it comes to RV (and many of their products in general) this guy has been there for several years. I think what he gave me would work but I am going to go with the OSI Quad because others here have used it. And caulk is cheap enough that if I just redo it every couple of years, whether it looks bad or not, I should not have this issue again.
The caulk that was on there still looked good and was stuck in most spots around the door - just a couple or spots a few inches long that let in all the water running down the bunk door ruined everything. And just by inspection it looked and felt like it was good.
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Old 10-30-2018, 08:13 AM   #6
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Quote:
Originally Posted by Jagiven View Post
OSI Quad caulk. Very sticky stuff.
Quote:
Originally Posted by wags999 View Post
X2 its what Jayco uses.
Thanks!!
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Old 10-30-2018, 08:23 AM   #7
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X2 on the OSI. My caulk at the front cap shrunk and was letting water in. I use the OSI Quad caulk a year ago and it is still a solid as day one. Read the directions, this is not like using regular caulk; much harder to expel. Also suggest you use blue tape to outline the caulk run as it is a challenge to clean off once it drys.
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Old 10-30-2018, 08:42 AM   #8
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condensation or water leak?

during the rainy times either with the air conditioner on or heat we"ve seen water all over the place. On walls, windows, and in closets. The dealer did a water pressure test and said everything is just fine. We don't really buy this. Not sure . Called jayco was given the run around. As for the service manager he was cold and couldn't care less. Oh by the way this is 3 months old. To go somewhere else is not practical. And jayco is in Indiana. Anyone else have a experience with moisture inside a jayco 5th wheel? trailer?
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Old 10-30-2018, 10:59 AM   #9
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Quote:
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during the rainy times either with the air conditioner on or heat we"ve seen water all over the place. On walls, windows, and in closets. The dealer did a water pressure test and said everything is just fine. We don't really buy this. Not sure . Called jayco was given the run around. As for the service manager he was cold and couldn't care less. Oh by the way this is 3 months old. To go somewhere else is not practical. And jayco is in Indiana. Anyone else have a experience with moisture inside a jayco 5th wheel? trailer?



Condensation. You have to keep the inside of your RV ventilated. Crack a couple of windows and a roof vent. Or don't breath, cook or run water in your RV.
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Old 10-30-2018, 11:10 AM   #10
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condensation or water leak?

Quote:
Originally Posted by dustyd View Post
during the rainy times either with the air conditioner on or heat we"ve seen water all over the place. On walls, windows, and in closets. The dealer did a water pressure test and said everything is just fine. We don't really buy this. Not sure . Called jayco was given the run around. As for the service manager he was cold and couldn't care less. Oh by the way this is 3 months old. To go somewhere else is not practical. And jayco is in Indiana. Anyone else have a experience with moisture inside a jayco 5th wheel? trailer?
From your description...
"during the rainy times either with the air conditioner on or heat..water all over the place. On walls, windows, and in closets." and
"The dealer did a water pressure test and said everything is just fine."
... it's likely condensation is the problem.

With high humidity, water vapor will condense on the coldest surfaces. Reducing the interior humidity is the first thing to try: Always use exhaust fans when showering, doing dishes, cooking, etc. Also, leave a ceiling vent open and a window open a small amount. Of course condensation in rainy weather is a challenge because the humidity is near 100% (air fully saturated) both inside and outside.

In some situations in the south, some members on this site have used dehumidifiers because of high humidity.
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