Killeen Roofing: Article About Benefits Of Radiant Barriers
Not every Killeen roofing contractor has the knowledge and experience to properly install a radiant barrier, but it is well worth searching for the few who do. By eliminating a large percentage of the heat taken in by a house through its roof, radiant barriers revolutionize energy efficiency by keeping living spaces significantly cooler.
A radiant barrier is installed below the roofing to create a barrier between the roof and the attic. The sun's heat hits a house's rooftop, which transfers heat by radiation to the underlayment, then to the roof decking, the rafters, the insulation on the attic floor and finally into the home's living spaces.
Radiant barriers are a type of thermal insulation that resists, blocks and reflects heat energy. The top of the barrier reflects radiant heat straight back up and out of the house. The bottom of the barrier has low emissivity, which means it barely allows any heat at all to radiate out of it and into the attic.
Heat flows from areas of high concentration to areas of low concentration. That is, it moves from hot areas to cold areas. There is no way to stop this flow of heat, but the flow can be redirected and controlled. Radiant barriers are one tool to use in controlling heat flow in a beneficial way.
The roofing contractors at Tony's Roofing of Killeen Texas can assist you with any questions regarding insulation or residential roofing.
In addition to attic ceilings, attic walls and other walls of a house or garage can be effectively covered with a radiant barrier. In fact, floors above unheated basements and crawlspaces have also benefited greatly.
Proper insulation and ventilation in an attic should be combined with both a radiant barrier and energy efficient roofing for optimal effect. Excessive dust buildup on a radiant barrier can reduce its effectiveness, but using a vent and fan system will both empty out hot air and minimize attic dust.
Energy efficient roofing systems can combine with radiant barriers to keep things cool inside the house. Many metal roof panels, for example, have heat reflective coatings that prevent them from overheating. High quality asphalt shingles, wood shakes and various thermoplastic membranes also offer excellent energy efficiency.
The same principles used for a radiant barrier were utilized in the thin, metal film used by the Apollo space program to reflect radiant heat, and the same film is used in the construction of thermal emergency blankets. Radiant barriers simply put this scientific breakthrough in the service of cooling down a home and saving on energy costs.