Foil Insulation Improves the Efficiency of Existing Insulation
A foil insulation in your attic will enhance the performance of existing insulating materials already installed in your attic. RadiantGUARD® foil insulation reflects 97% of the radiant heat that penetrates through your roofing materials. Because this energy is reflected and not absorbed, it doesn't pass through the foil insulation and therefore the heat doesn't come in contact with the existing conventional attic insulation making it the equivalent of a more effective insulator.
How Conventional Insulation Works
Standard attic insulation works by reducing heat transfer by conduction by trapping heated air within the insulation material. Once the air within the attic insulation is saturated with heat, however, that heat is then transferred out of the attic insulation to the cooler side of the insulation. In the summer, this means the heat is transferred to the cooler ceiling and into the living spaces below. In the winter, it means that the warmth from your ceiling will be conducted up through the insulating material and into the cooler attic or roof area and out of your home.
Foil Insulation Improves R-Value of Existing Attic Insulation
Foil insulation ensures that most of the radiant energy that passes through your roofing in the summer will never reach your floor insulation and heat from your home in the winter will stay in your home saving you energy and lowering your monthly utility bills. It does so by increasing the effective R-Value of your current attic floor insulation.
A prominent foil insulation study performed by the Tennessee Valley Authority found that a foil insulation used in conjunction with an R-11 attic insulation has the same affect as the use of an R-19 insulation alone and when used with an R-19 insulation, the affect is the same as that provided by an R-30 insulation. In fact, energy specialists Philip Fairey of the Florida Solar Energy Center (FSEC) actually confirmed that the use of a foil insulation with an R-19 insulation used less annual energy than the use of just an R-30 insulation without a foil insulation.
With foil insulation, your attic floor insulation stays cooler during the summer, conducts less heat to the ceiling below, and your ceiling stays cooler keeping the rooms below more comfortable. When your entire insulating system is working this efficiently, your air conditioner will not run as often. The air in your rooms will stay cooler longer. You not only save on energy costs with foil insulation, you potentially save on equipment repairs because your air conditioning system doesn't have to work as hard to keep up with the sweltering heat outside.
Our RadiantGUARD® radiant barrier foil insulation reflects 97% of the radiant heat and is the most economical solution to lowering your monthly utility bills today.
If you have any questions about our foil insulation or any of our other reflective insulation products, please call us today toll free at (866) 528-8412.