We installed our AtticFoil last fall using the truss method. But before we did it, I called in one morning to ask a question and got Ed on the phone. I told him of the problems I was having, the age of the house, etc., and Ed convinced me to take a more thorough approach. I added ventilation, air-sealed the walls and penetrations, applied mastic to our ductwork, and took the time to do it right. After we installed the AtticFoil, we could tell a huge difference immediately in our living area which has a hot wall in a vaulted ceiling with western exposure. It was amazing. Afterward, we insulated the hot walls and had insulation blown in to R-38 spec. Our home is really comfortable now. We've been keeping it cooler in the warm weather, and warmer in the cool weather, and our electric bills are lower. I was in the attic just last night putting storage stuff up, and it's comfortable, even down here in the Houston area. I love my AtticFoil, and working with Ed and his staff has been great. Would highly recommend it to anyone thinking about comfort and energy savings. Well worth it.