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Old 06-25-2012, 06:56 AM   #1
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Wolfpack Fan's Avatar
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Location: Reno, Nevada
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Which Sealant to Use

I purchased a vent cover for the roof of our motorhome and I'm looking for recommendations on which sealant/adhesive to use when I mount it. It's one of the Camco vent covers that has louvers to keep rain out and is sloped on the one end so vent can be open when under way. I figure I'll mount it with sealant first then put a few stainless steel self taping screws just long enough to penetrate the roof about 1/4". Or are the screws even necessary with the right kind of sealant/adhesive ?

I'm not sure if the roof is rubberized or just coated. The material on the roof isn't exactly soft like rubber, but it's some sort of coating over top of the fiberglass.

There's a lot of different products at the home centers that I know would work, but might not be the best choices.

Thanks in advance for any recommendations.

Harley Ultra Classic (Geezer Glide) Rider, Retired US Army Paratrooper, fisherman, shooter. Proud to have served, proud of those that still do, or have done so with pride.
2005 National Dolphin 34'
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Old 06-25-2012, 07:25 AM   #2
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Workhorse Chassis Owner
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Most vent covers come with mounting hardware and don't require any sealant or holes in the roof.

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Old 06-25-2012, 07:31 AM   #3
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3m 5200 is messy and hard to remove if you need to but it will seal anything!
Tom Homestead Fl.
2006 National RV Tradewinds 40D
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Old 06-25-2012, 07:43 AM   #4
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There is nothing to seal. It doesn't mount to the roof, but to the vent itself.
Steve Cifra
2014 Keystone Sprinter Copper Canyon 324FWBHS
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Old 06-25-2012, 07:56 AM   #5
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if you seal it to the roof you will have two issues:

1. any water that does happen to get in through the louvers will be trapped there.

2. WHEN you have to remove it for cleaning or maintenance you will be in a world of hurt.

mount it to the vent frame with the hardware provided. no sealant!
1999 Winnebago Minnie 29', Ford V10, Close to stock.
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