I am making a coop and plan to paint it barn red and white, original i know, but i have to figure there is some utility to these common choices other than nostalgia. I have some questions about both. I hear white wash has antibacterial qualities and is easy to clean. Does it hold up will in rain and against the intense Arizona sun? Is what is referred to as "barn red" a paint along the same lines? Are there brands that are better than others? Thanks in advance!