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Old 10-05-2016, 01:33 PM   #1
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Unhappy Leaking Rear Skylight

We bought a new 2016 Flagstaff T21QBHW in July and the rear skylight had been damaged during shipping. The dealer finally replaced it, but now we discovered that we have a water leak. We had earlier found wet linen on the bed before the original skylight was replaced, but didn't detect a leak because we were never in the camper when it was raining. So, it may be that the original skylight leaked also. Can't see anything wrong with the skylight seal, but when I put Gorilla tape across the top the leak seemed to stop.

Anyone else had a similar problem?
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Old 10-05-2016, 02:54 PM   #2
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Haven't seen a skylight yet that didn't eventually leak. So now the first thing I do is use eternabond around the skylight and then dicor the edges of the eternabond.
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Old 10-05-2016, 03:50 PM   #3
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Get the leak fixed first, then seal with eternabond or 3M tape.
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Old 10-05-2016, 06:57 PM   #4
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Old 10-05-2016, 07:16 PM   #5
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Thanks for the info. How do I identify the 3M tape?
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Old 10-05-2016, 07:22 PM   #6
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If I use the eternabond, should I also use the eternabond cleaner?
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Old 10-05-2016, 07:35 PM   #7
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Your 2016 has an Alphaply membrane. Get a tube of Alpha self leveling sealant and after cleaning the existing sealant the best you can with denatured alcohol, float a good bead of that sealant over the existing. It shoud be easy to find a split or hole in the sealant of a skylight bubble.

Or you can use eternabond tape....... but your playing with fire. If your skylight ever cracks, which it probably will, you'll probably tear up the membrane removing the eternabond tape. Then you'll be in for some real fun.
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Old 10-06-2016, 12:51 AM   #8
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Quote:
Originally Posted by Mr Havercamp View Post
Your 2016 has an Alphaply membrane. Get a tube of Alpha self leveling sealant and after cleaning the existing sealant the best you can with denatured alcohol, float a good bead of that sealant over the existing. It shoud be easy to find a split or hole in the sealant of a skylight bubble.

Or you can use eternabond tape....... but your playing with fire. If your skylight ever cracks, which it probably will, you'll probably tear up the membrane removing the eternabond tape. Then you'll be in for some real fun.
I have actually replaced a skylight I had used eternabond on after a hail storm destroyed it. Easy. Used a utility knife to cut around the edge of the skylight and removed it. Removed all the old dicor with a gasket scraper. Screwed the new skylight in place, eternabonded the new one over the remaining old eternabond and finished it up with dicor just like the original. No biggy. Didn't tear up anything and no leaks.
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Old 10-06-2016, 02:53 AM   #9
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If I use the eternabond, should I also use the eternabond cleaner?
I would use eternabond tape 4" wide, YES you will need to clean the area either with there cleaner or acetone, it has to be prepped for good adhesion, also get a roller the kind they sell for wallpaper seams. Skylights are really A PITA. But great stuff. It's all in the prep work...
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Old 10-06-2016, 09:08 AM   #10
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Thanks for the info. Your help is really appreciated.
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