Carol...Don't get me wrong here. I'm not trashing anyone's use of this stuff. BYO strives to use select stuff and they are concerned with long term durability. It's good for battling the elements against termites and weather decay. But for cosmetics(sorry but as a professional I can't seperate looks and function)this stuff is for the berries! I've made miter joints on decks etc. so tight you couldn't see daylight thru them. Couple of months later I'm embarrassed to give a customer's job as a reference to someone else. Caulking and paint don't stick for long and some stains after a year or so you wouldn't even know they were there. People just need to now in advance of the limitations of this stuff. Structural and durability I give it a 10 but for cosmetics....zippity do-da!! Mike