What is radiant barrier? What do you know about it?

Radiant heat that would otherwise permeate and heat items and areas, like the interior of your attic, is prevented by a radiant barrier. A radiant barrier is something that reflects heat back to its source; the name pretty much says it all. It prevents an object from receiving UV energy and producing heat on its own.

Energy (from the sun or any other source) that is conveyed without actual contact is known as radiant heat. When heated by radiant energy, a substance gradually starts to radiate heat in all directions.

The attic roof becomes warm as adiant heat from the sun strikes it. The shingles, plywood decking, trusses, etc. heat up. The heat from those objects then continues to accumulate and radiate in all directions. Half of the heat may be lost to the outdoors, but the other half simply continues into the attic. This heats up the drywall that makes up your ceiling, the floor, the attic insulation, and finally seeps into the living area.

The first stage in preventing radiant heat from entering from the sun is a radiant barrier. The second stage in stopping the conduction of heat to the rooms below is to insulate the attic floor. Your attic insulation actually performs better when you use radiant barrier solutions.

Insulation offers no protection from the attic's rising radiant heat levels. Nothing prevents the heat from transferring, thus it will ultimately warm up. Second, a radiant barrier improves insulation. Your living space will stay cooler if the attic insulation maintains a cooler temperature.

To sum up: The radiant barrier is a type of construction material that reflects thermal radiation and reduces heat transfer. Because heat energy is also transferred by conduction and convection, in addition to radiation, radiant barriers are often equipped with insulation that slows down heat transfer by conduction or convection.