If your home needs stability improvements to handle it, that won’t be cheap. It’s a mostly recycled rubber material sold in rolls, which are held together by seams that stick due to the heat. TPO comes in rolls but is priced like any other roofing material. It is best suited for flat surfaces, which it was designed for. It's not designed to be attractive and must be installed in dry conditions, which is why it’s generally seen among commercial buildings. The quality of material in TPO can vary g...