Lap Sealant vs Eternabond Tape

If you listen to everyone's opinion on this subject, you will end up confused.
IMO self-leveling goop came into the picture due to the fact that the RV manufacturers wanted a product that would lend itself to mass production. With self-leveling stuff they can apply it very quickly, and for the least amount of material cost.
IMO for private/individual use, self-leveling goop makes no sense. There's other ways, which are more expensive and more work-intensive, which produce superior results.
HOWEVER, I'm not so much referring to rubber/membrane type roofs and materials. I only work on metal or semi-fiberglass or all fiberglass roofs.
I use 3M 4200 Adhesive/Caulk and Eternabond and Sika non-silicon products.
IN other words, some of these things you have to learn on your own. Try whatever you decide to use, and give it a few years.

Thanks guys.

Looks like this same stuff...

Dicor Lap Sealant

is being called lap sealant or caulk, depending on the seller, but the label calls it lap sealant. I guess it's the right stuff for the roof?

I like the idea of cleaning the old, and just reapplying where needed a little here and there. I hate to clean all of the old completely off and re-apply entirely, and I hate to spend the money on a complete Eternabond application. I like the idea of the front and rear seam thing for the tape (in future?) and self-leveling everywhere else.

This roof has three skylights, three vents, one antennae, three plumbing vents, one air conditioner and a refrigerator vent so that's a lot of work if just some touch up is perfectly adequate.

I'm still open for more thoughts and input.

I prefer Eternabond. Clean the roof very well and apply the tape with sufficient pressure and you are done for a LONG time.

Hi. The proper caulk to use on the roof is "self leveling caulk". Lap sealant is used for vertical surfaces, ie around Windows, along exterior wall trim, etc.
On my roof, I installed Eternabond tape along the front and rear seams only. The rest is self leveling caulk.
I don't use Eternabond tape around roof fittings such as vents because in the event I ever need to remove or replace the vent fixtures, removal of the tape (once applied) is very difficult.
The best thing to do is clean all existing caulk areas on your roof with a hand scrub brush to remove all blackened areas. You can then better assess what caulk needs to be redone. Once the existing caulk is good and clean/dry, you can apply more self leveling caulk right on top of it.

If you have the cash to spare, then eternabond. If not Dicor Lap Seal. My trailer is 10 years old, still no eternabond. Lap seal has proven to be fine for me.