The fungicide sounds like a good addition, thanks. I know one of the major schools has been teaching against sealers for at least 40 years and that's about how long I've been using them. Latex paint is a good choice, more colors, faster, and easier cleanup. The roof cement will eventually crack (as it does on our roofs) especially on horizontal surfaces and of course there is no chance of healing there but to me it is better than nothing at all especially with the fungicide. I find the bark will not dry back and release from the wood nearly as fast. It's a band-aid. If I removed every damaged tree on my property I would also save a lot of time mulching leaves because I don't think I would have a twig standing LOL.