I have a 150 year-old timberframe barn with a galvanized/corrugated roof. The roof has obviously been painted in the past with the typical silver looking stuff. I need to coat the roof because it has a few pinholes and rust is starting to show on the top. I have been looking, but there are a ton of products out there... Anyone know of a good metal roof paint? Criteria: Needs to be red, needs to be applied with a brush or roller, needs to be somewhat durable. Oh yeah, can't cost a fortune. I do want a good product, though. I don't know if this will solve my problems long-term, but I'm looking for somehting that will help delay having to replace the roof for 5-10 years (or longer). I've nerver done this before, so I figured I'd see what others know here on the Hearth... Any thoughts??