We have some really smart guys out there that are putting different types of coatings on and I thought it would make a great topic. Your feedback please!
Good AM- I've been playing around with a couple Gaco products this year, specifically Gaco Patch, Gaco Bleed Trap and then the S-4200 silicone coating. After a couple small comercial jobs, the system seems to good to be true really, we'll see how it holds up. Technically and warranty-wise there needs to be less than 30% moisture within the roof deck, that said there are one way vents that can be installed to help encourage decks that have gotten just a bit wet to eventually dry out. There is a roll on application and a spray application as well. Obviously for a job of any size, and for those who have used various sprayers, it is definitely the way to go, although the roll on works very well as long as you can guage the thickness of what you're putting down (don't roll too thin). The spray rigs are expensive, so you'd need to have some decent accounts to bother buying one. The patch is amazing itself. I keep a pail in the van for emergency repairs...pushes water away, easy cleanup etc.