I am constructing a coop from scratch, using primarily reclaimed lumber...as you can see from the pic, I have finished the platform and framed the walls...I have never constructed a roof, and I would like some advice on the most simple method of doing so...it by no means needs to be perfect...just a bit of an overhang and a slight pitch...the dimension of the coop is 4'x5', and materials are at a premium, so I want to make the roof structionally sound, with the least amount of lumber as possible!