When it comes to deciding on a spray foam insulation, the decision is challenging since both open and closed are capable of insulating homes, just in different ways. For Matt Risinger, the decision isn't challenging at all though. Closed-cell foam is the Lexus of insulation. Closed cell foam is comprised of cells that are pressed together so that air and moisture cannot get inside. Closed cell foam is a more rigid product than open cell foam. When you need to insulate in a place with space considerations, closed cell is the way to go. It also prevents water and moisture from getting inside the home. Watch as Risinger shows us how he uses it in the roofline of a 150 year old Austin home.