Master Builder Matt Risinger takes us to a farmhouse in East Austin, TX where he's building on an organic farm. In the heat of Austin summers, how do you create a high-performance roof that keeps the cool air inside and the hot air outside? Because of the Texas heat, there is a lot of emphasis on cooling homes, and roof load, or the heat taken through the roof of the home.This video explains one of the important things you can do to bring you one step closer to a high-performance roof two inches of ISO board bonded to a half inch of OSB decking. These panels, made by Hunter Panels in Houston, TX., along with 5.5 inches of spray foam insulation, help to create a conditioned attic and, ultimately, a more efficient home.