Cob with living roof, Portland, Oregon Cob with living roof, Portland, Oregon. found this on Lloyd Kahns blog it’s beautiful. (Visited 4 times, 1 visits today)Related Posts:Stop! You came here looking for something.I think you found…Down the rabbit hole.Watch a middle aged couple build their own small home for…Preview to coming attractions.Average daily cost of living. How do you measure up? Part…Guerrilla off grid living.