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How/If to seal this
#1

Gurus,

As I tend to my roof, I came across this conundrum.  If you follow the roof metal over to the side — where it meets the vertical panel on the side of the coach, you will find a drip-edge.  I have included picture.  Smart users have recommended Dicor as the correct sealant for the roof, but I am wondering about this ... it seems as if there is a good place for water to get behind the panels.

I don’t want to make a mess of the seam if sealing is not needed.  

So, do I mask and seal?  Leave alone?  Or Other?

Thoughts?


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Bill Johnson
Birmingham, Alabama
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#2

I masked and sealed that seal with silicone. Can't see it from the ground so I wasn't worried about it turning yellow

Richard and Rhonda Entrekin
99 Newell, 512
Maverick Hybrid Toad
Inverness, FL (when we're home Cool )
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#3

I think Dicor makes a self leveling polyurethane caulk that should flow into the crack. I'd use blue tape to keep it from going where you don't want it though.

Forest & Cindy Olivier
1987 log cabin
2011 Roadtrek C210P
PO 1999 Foretravel 36'
1998 Newell 45' #486 

1993 Newell 39' #337 
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#4

It seems like if you only seal the top edges then any water that did get behind it could drain out.

Mike & Jeannie Ginn
2000 Newell #555 - sold July 2020
2019 Leisure Travel Van FX model
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#5

While I was looking at this spot, I realized the top of my window front side windows are badly in need of attention. I think that someone recommended a urethane caulk to do the windows....but when looking at the big box stores, I only find urethane adhesive sealant. I want to get something that is black so it won't stand out. I did a bunch of reading on the inter-webs and there are lots of opinions (pro-con) about the silicone. So will black silicone work for the top of the windows?

Finally, I am also looking at the marker lights. Some of mine are sealed around the outside edge with clear silicone. (This looks terrible with smears on the paint and the marker light. Has anyone done their lights in a way that kept the water out but still looked neat? I have eternabond tape and am thinking about cutting a piece the exact size of the square hole putting behind the LED light to seal it. Alternatively, I could use Dicor behind the light. Others recommend marine silicone. These lights have a little foam sealing pad behind them, but I don't believe this is doing anything of value. Any thoughts?

Thanks!

Bill Johnson
Birmingham, Alabama
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#6

How about using butyl tape? That would allow it to be easily removed. I think you can get it in white, brown, gray, and possibly black.

Forest & Cindy Olivier
1987 log cabin
2011 Roadtrek C210P
PO 1999 Foretravel 36'
1998 Newell 45' #486 

1993 Newell 39' #337 
Reply
#7

I thought about the tape, but was worried about the thickness. I may get tape and replace the foam pad and do one light and see how it works.

For sure, I will use silicone to fill in the hole behind the light. (They drilled through the fiberglass when the coach was built). Also will try to seal around the wires with silicone.

I am really surprised at how these light are mounted. I would expect the wires to be sealed and that any water behind the light would not be able to get into coach. That is not true at all. There is actually a pretty big hole behind the light and another where the wire is. In other words....if the edge of the light is not sealed, the water has an easy path into the coach.

Bill Johnson
Birmingham, Alabama
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#8

Bill,
This is what I used to reseal my windows.

https://www.emisupply.com/catalog/sikafl...eIcRDDasdU

Steve Bare
1999 Newell 2 slide #531
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#9

Here's a link to a marine site that compares butyl tape to marine silicone that might help. Bedding Deck Hardware: Silicone vs. Butyl Tape

Jon & Chris Everton
1986 40' Dog House #86
450 hp ISM 5 spd ZF Ecomat 2
2004 Range Rover L322 Toad
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