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  1. #1
    Big Traveler
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    Sealed properly?

    On our 5th wheel, the sealer on the tpo roofing does not seal to the dark brown trim along the top rear. It looks like water can go in between the roof and the trim. Is it supposed to be sealed to the trim?
    2018 Dodge 3500 6.7 Cummins SRW w/Aisin
    2021 Reflection 303RLS
    New to RV'ing since 1997

  2. #2
    Site Team Ynot4me2's Avatar
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    Quote Originally Posted by Scott'n'Wendy View Post
    On our 5th wheel, the sealer on the tpo roofing does not seal to the dark brown trim along the top rear. It looks like water can go in between the roof and the trim. Is it supposed to be sealed to the trim?
    I think pictures would help us.
    Steph & Lise
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  3. #3
    Site Sponsor Jerryr's Avatar
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    Quote Originally Posted by Scott'n'Wendy View Post
    On our 5th wheel, the sealer on the tpo roofing does not seal to the dark brown trim along the top rear. It looks like water can go in between the roof and the trim. Is it supposed to be sealed to the trim?
    YES! It should be sealed. Mine was like that on one side so I used Alpha 1021 self leveling sealant. Lippert now has rights to it and it’s available directly from them or Amazon. https://www.amazon.com/Lippert-Compo...084DVXM7P?th=1
    Jerry & Linda
    Emma & Abby our Mini Golden Doodles & JR our Amazon Parrot
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  4. #4
    Big Traveler
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    Quote Originally Posted by Ynot4me2 View Post
    I think pictures would help us.
    Ok...you're a 'pictures' guy/gal are you?...lol

    Click image for larger version. 

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    2018 Dodge 3500 6.7 Cummins SRW w/Aisin
    2021 Reflection 303RLS
    New to RV'ing since 1997

  5. #5
    Big Traveler
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    In the pic, you can see (hopefully) where the sealer makes it to the dark brown trim. Most of it does not appear to be sealed.
    2018 Dodge 3500 6.7 Cummins SRW w/Aisin
    2021 Reflection 303RLS
    New to RV'ing since 1997

  6. #6
    Paid my dues 😁 FT4NOW's Avatar
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    My personal opinion is to put a piece of Eternabond across the entire front and rear seals. Did that on my last few campers since the seal looked like there was potential water entry spots.

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  7. #7
    Big Traveler
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    While my thinking tends to agree with Jerryr, I'm not 100% sure the sealer is 'supposed to be sealed to that trim, or is the trim meant to be removable?

    I'm not familiar with eternabond, google time.
    2018 Dodge 3500 6.7 Cummins SRW w/Aisin
    2021 Reflection 303RLS
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  8. #8
    Long Hauler geotex1's Avatar
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    Your picture is of tape similar to Eternabond, just Alpha's. The real seam is below that tape. Nothing wrong with bridging with wider tape if it brings you peace of mind. Eternabond, and the original product out of commercial roofing is available in wide widths. Be sure to clean the aluminum and existing tape well.
    Rob & Nikki + Cloverfield
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    Mountains of Pennsylvania

  9. #9
    Big Traveler
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    Thanks all
    And I now realize I posted in the TT instead of the 5th wheel section. Oh well. Probably same construction.
    2018 Dodge 3500 6.7 Cummins SRW w/Aisin
    2021 Reflection 303RLS
    New to RV'ing since 1997

  10. #10
    Gone Traveling
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    You should definitely seal it. I owned the coach from late 90s and where the rooftop was in a terrible state. I scrapped off all the cracked sealant and applied the new one. I used Ready Seal (also available from Amazon) that forms a waterproof coat to ensure that no liquids make it past the seal. It looked good with no cracks or leaks for years.
    Last edited by Karl Gordon; 07-27-2021 at 06:11 AM.

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