A Radiant Barrier consists of a highly reflective material that reflects radiant heat rather than absorbing it. Use of a radiant barrier installed attics is a smart way to reduce attic temperatures. Which could cut cooling costs. It slows the movement of heat by reflecting radiant energy. To slow conductive heat loss we need reflective insulated. Heat always moves from hot to cold. Mostly by conduction, convection and radiation.
According to the U.S. Department of Energy. A radiant barrier works best when it is vertical to the energy striking it. Also, the greater the temperature difference between the sides of the material. Is the greater the benefits can offer. Since insulation can only absorb radiant heat it just slows it down. The hot roof material then radiates its gained heat energy to the cooler attic surfaces. Including the air ducts and the attic floor. A radiant barrier reflects the radiant heat transfer from the underside of the roof to the other surfaces in the attic.
On the other hand, because the barrier reflectance absorbs nearly all of the heat. It will greatly reduce the total amount of heated air that is radiated from your ceiling down into the house. Since radiant heat plays a large role in our comfort. It is usually most beneficial to address that component first.
Here at J Ferg, we pride ourselves in customer service. If you are uncomfortable in your home due to heat. Call us today and we will schedule a free energy audit to pinpoint the troubled areas. We have specialized installers ready to help you today.