Did some Henry Co. Roof Coating recon today at Home Depot, based in part on a RV recommendation online.
See below the White Roof Coating family of Products, and the Henry Co. Website linked below that.
Lots of info to absorb. Recommendations are to lay down 2 Coats. Besides that well-known effect whereby anything related to 'RV' instantly costs more [like Roof Coatings], I also figure that this Roof repair 'stuff' has all been done before. Ain't no Wheels being reinvented here, by me at least...
Product 587 is an Elastomeric coating sold in .9 Gallon Cans for $27.35 here. Product 289 is the associated Sealant. Product 296 is the 'Elasto Tape' Product used for voids, not unlike Drywall Joint 'mesh'. Product 224 is the Window/Door Sealant.
Product 204 Coating can also be used. Products have different drying times. Instructions on the Can give lots of info, including that above. The Henry Rep thought a 7 year life was reasonable for RV Applications. Product 587 can be applied over 'well adhered' Paint.
I don't know if Eternabond Tape is compatible or not.
I recall my Grandpa rolling some Aluminized Roofing 'stuff' on his Single Wide in the '60s, and there's something like that color of material on my 31' Avion installed by the prior Owner. No leaks.
My pal and I, doing 15' TT Roofs 'simultaneously' next month, will likely split a large Can of their best Product and sweat the prep details to maximize our Roof lifespans and avoid further Rot damage.
Stuff sounds good to me thus far. So, the research and soliciting good/bad Testimonials will continue.
Henry Roof Coatings
Henry.com