This Toronto, OH customer had heating and cooling ducts in his Attic. In the summer time temperatures in the attic would reach well over a 100 degrees, making his air conditioner work extra to keep the house cool. Using spray foam we added several inches of insulation to his ducts. Increasing the amount of insulation on your ducts in the attic will extend the life of your air conditioner and lower your energy cost but more importantly keep you cool in the summer!