Roof Sealant question 2019 Vista 29VE

[fun camper]

I have a 2019 Vista 29VE
I was inspecting the sealant on the roof and noticed some cracking where the
endcaps meet the siding and roof. It looks like sealant E is used on the caps on either side and sealant C Sikaflex is used across the horizontal portion of the roof. Sealant E is silicon and sealant C is not. How does this work where the two come together? Is it okay to overlap the Sikaflex over the silicon. That looks like the way it is right now. The last time it was done it was done at the Winnebago repair shop in Forest City. Sorry, I'm a newbie, has anybody else done this?

[creativepart]

I think you are misreading your sealant guide. The only place I see Sealant C is over the windows on the side of the motorhome.

Everything on the roof is Sealant A which is Nuco 311 or Hengs 311 - silicone self-leveling.

There is some sealant B... but it's just clear instead of black. There is no sealant E.

Here's a link:

https://www.winnebago.com/Files/File.../000181968.pdf

And for quick reference, here's a screen shot:

[fun camper]

Thanks for the response.
It appears yours is different than mine, see picture.

[creativepart]

Humm, yes different. Where did you get yours?

Mine came today from the Winnebago Owner’s website for a 2019 Vista 29VE.

[fun camper]

Operators manual that came with it.

[creativepart]

Ok, I see. The company does charge sealants and part numbers, it seems, from time to time. The current chart does make it easier.