Here you see my first attempt as well as a second attempt of larger scale. I wanted to see how I might facten panels together so I built a sample joint between two 2' X 2' wall sections to simulate the junction of two walls or a wall and a roof or floor. The bracing was 12" centers which is too close for real life. I filled only half the structure with foam. This R-22 wall would be about 3 lbs. psf of surface area.