Utility Bill Savings You Can Expect

The most commonly asked question about radiant barriers is "How much money can I save on my utility bill if I install a radiant barrier?"

Although RadiantGUARD® radiant barriers BLOCK 97% of radiant heat, your utility bills savings will vary because there are other forms of heat flow in a building that contribute to the total cooling (or heating) load.  Data varies by region.

Direct quotes from a radiant barrier study performed by the Tennessee Valley Authority help to point out the heat transfer savings you can expect although heating and cooling economic savings will vary based on other types of heat flow and local climatic variations:

• "All the radiant barrier configurations yielded sizable percent savings (ranging from 16 to 40 percent) and statistically significant reductions in summer attic heat transfer compared to the non-radiant barrier case.  Also, as the ambient temperature increases, the savings also increase."

• "The radiant barrier configurations provide statistically significant reductions in winter attic heat fluxes in many, but not all, situations. The percent savings during night hours and during below 35 degree F conditions, when heating loads are highest, are usually sizable (from 6 to 23 percent) and the differences between the radiant barrier configurations and the non-radiant barrier case are often statistically significant during these conditions."

Note:  Note: The above study was conducted in Chattanooga, Tennessee and references radiant barrier performance tests when used in conjunction with R-11 and R-19 insulation however, R-30 is the least amount of insulation permissible under 2006 IECC.  R-11 and R-19 are not reasonable baselines in 2009.