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How it Works


Before you can truly appreciate the benefits of installing radiant barrier, you should understand how radiant barrier works. At A-Anderson Air Conditioning Heating & Electric, we are committed to ensuring you are knowledgeable of the radiant barrier product we are installing. We will begin with some definitions of common terms in the radiant barrier industry.

Radiant Heat:   An unseen movement of heat. As heat is transferred by radiation it travels through space without actually heating the space. Heat becomes absorbed by the first solid object it comes into contact with.

Emissivity:   The amount of heat that is "emitted" or radiated off of the surface of surrounding air.

Reflect:   To cause to return after striking upon a surface, much the way a mirror reflects rays of light.

Radiant Barrier:   Usually constructed of foil or aluminum, radiant barrier is a material that is designed to block or reflect radiant heat.

R-Value:   The measurement of resistance to the flow of conductive heat transfer.

In able for radiant barrier to perform as they are intended there are two properties:
Reflectivity and Emissivity. To begin with, the aluminum is reflective on the "hot side". Secondly, aluminum has an extremely low emissivity of between 0.03 and 0.05, which means that only 3% to 5% of the heat is emitted into the air on the cold side.

For radiant barrier to be beneficial from both properties, the radiant barrier must be double-sided. It must also be installed so that there is an air space or low density material on both sides. When you do not have radiant barrier, heat travels through the open space and is absorbed by insulation, ductwork and air handlers.

During the heat of the summer, the sun can heat the roof and walls to a blistering 190 degrees Fahrenheit. If Radiant Barrier is not in place, the heat of the surface radiates the collected heat into the attic space. Ultimately, this heat will penetrate the insulation and the house. In fact, traditional insulation will only slightly stop radiated heat. Instead the heat is absorbed into the attic space and insulation product.

Radiant Barriers that have been properly installed will block 97% of radiant heat and will also benefit you with valuable energy savings year after year, season after season!

Unlike the summer months, during the winter heat radiates in all directions and rises. It then becomes lost in the ceiling. The benefit of Radiant Barrier in the winter is that most of the heat will reflect into your home and keep you warmer naturally, without huge heating expenses.

As the cost of heating and cooling continues to rise it has become imperative that we stay abreast of the very latest innovations to energy management and natural resource conservation. If you have any questions or would like to schedule a free consultation with one of our energy management specialists, please feel free to contact A-Anderson Air Conditioning Heating & Electric, at           469-556-9568