I built a large deck (32 x 13) last year that I now would like to add a roof to. I'm thinking about a gable roof with the gable right in the middle. Does anyone have any advice or a web site that can give me some info on building this so that it doesn't become a big kite and fly off of my house. I've attached a picture so you can get an idea of what I'm trying to do. As you can see, I've added some 4x4 posts for support of the roof when I built the deck.