Eternabond roof seal.

[MoonShadow_1911]

So last week, on my 2021 320MKS, I added the Maxxair II fan cover over the bathroom fan (no I'm not posting a mod on that, partially because I forgot to take pictures!). When climbing down the ladder, I noticed a slight gap between the lap sealant the Grand Design used and the metal flange at the back of the roof. When I looked at it closer, it was only in a few spots. I did gently probe it and found that the roof membrane seemed to go under the metal flange.

We took a weekend trip with our RV club to beautiful Eagle Nest, NM this last weekend. Unfortunately, those little gaps bugged me enough that I ordered the 6" wide Eternabond and their cleaner and primer sprays.

They came in on Monday, I was busy with work yesterday so this morning (Wednesday) I went out to the storage lot and went to work.

Again, I forgot to take the before pictures but, I have three after pictures. I did both the back and front caps.

It took longer to get everything up on the roof for me to work than it did to apply the Eternabond!

All in all, it took me less than an hour to do both the back and front.

The little bubble looking things are NOT bubbles! That is where the lap sealant was gooped higher than the rest.

I liken this to putting a tempered glass screen protector on a brand new phone. If you have a bubble under it, it'll annoy the heck out of you! But in the case of Eternabond, it'll give Murphy a place to start to get under it.

(For those of you scratching your head, think Murphy's law... Anything that can go wrong, will.)

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[openrangeowners]

Interesting that my Solitude (8/2020 build) came with tape over the rear cap seam area. I went over that with additional Eternabond and did the same thing you did for the front cap seam area. Can't hurt. I did this last fall and check it every couple of months - so far so good.

[MoonShadow_1911]

Interesting that my Solitude (8/2020 build) came with tape over the rear cap seam area. I went over that with additional Eternabond and did the same thing you did for the front cap seam area. Can't hurt. I did this last fall and check it every couple of months - so far so good.

I've read several posts here about doing it, so since I was up there anyway...

As a side note, my truck looks like a toy in the picture! I know I'm 13' up in the air, but good grief!

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[Ynot4me2]

Looks good. Now you can go back to enjoying camping without that little voice in the back putting doubt.

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[MoonShadow_1911]

Looks good. Now you can go back to enjoying camping without that little voice in the back putting doubt.

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Tell me about it! Sometimes I hate that little nagging voice, and no, it's NOT my wife! [emoji1787]

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[orbiker]

You job looks better that the factory gooping.
I've got a little corner spot I'm getting ready to fix. I guess I should do the whole edge too. Thanks for the encouragement.

Any tips on cleaning before sticking? KEN

[MoonShadow_1911]

You job looks better that the factory gooping.
I've got a little corner spot I'm getting ready to fix. I guess I should do the whole edge too. Thanks for the encouragement.

Any tips on cleaning before sticking? KEN

I used the Eternabond cleaner. Acetone would work just as well.

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[Hitsman3]

Did you pull up the old sealant or just tape over it? I've been wanting to do this as well. Where did you get the cleaner, amazon?

[MoonShadow_1911]

Did you pull up the old sealant or just tape over it? I've been wanting to do this as well. Where did you get the cleaner, amazon?

Just taped over it.

EternaBond RoofSeal White 6" x50' MicroSealant UV Stable Seam Repair Tape | 35 mil Total Thickness EB-RW060-50R - One-Step Durable, Waterproof and Airtight Repair https://www.amazon.com/dp/B07BRMRMWX...ing=UTF8&psc=1

Eternabond Eternaclean and Eternaprime Set https://www.amazon.com/dp/B01BCPC7Q6...ing=UTF8&psc=1

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[NB Canada]

Did you pull up the old sealant or just tape over it? I've been wanting to do this as well. Where did you get the cleaner, amazon?

Just tape over

I saw a post on Facebook of someone that removed it all
Unreal the work he had to do


2021 Imagine 2400 BH
2018 GMC Sierra 4x4 crew