All of the heat from the sun is transferred to the Earth in the form of radiant heat. This is heat transfer without actual contact with the heat source. When your roof absorbs radiant heat from the sun, it heats up. Eventually, your roof will start to distribute the heat in all directions. About half of the heat, or energy, will transfer into the attic.
Without a radiant barrier, your attic insulation will absorb this energy and begin to heat up. Eventually this heat will make its way through the attic insulation and into the home. Traditional attic insulation will only slow down the heat transfer process. When you install a radiant barrier between the roof and the attic insulation, it breaks this path by reflecting the radiant heat back towards the roof, and helps keep the attic insulation from getting as hot. By keeping the attic insulation cooler, we can significantly reduce the amount of heat transfer entering the home by making the regular attic insulation more effective.
Radiant barrier is your first line of defense against radiant heat, and traditional attic insulation is your second line of defense against conductive heat flow. Since your home is exposed to both types of heat, you need a different product for each one.
Reduce Your Energy Costs
When your HVAC system is located in the attic a radiant barrier can cuts cooling cost up to 20%
Did you know?
Radiant barriers can be applied in a foil roll or as a spray coat. The foil roll is a better performing option but the spray coat is a nice economical way to block the summer heat!