Traditional building practices use vented attics with fiberglass or blown in cellulose on the floor for insulation. Conditioned air from the living space of the home leaks into the attic and out of the home, while unconditioned air enters the home, causing the HVAC system to work harder. Spray foam insulation seals the attic vents and all possible leaks, keeping conditioned air in the house, and unconditioned air outside, allowing the HVAC system to work more efficiently. This uses far less electricity, meaning you start saving on your energy bills immediately. Depending on the age and construction of the house, savings on energy bills can range from 20-50%. On top of the energy savings, the HVAC system will last longer due to the lessened burden of conditioning the air that is now staying in the house. In addition, spray foam never needs to be replaced, saving you the cost of adding blown cellulose or changing out old fiberglass.