![]() ![]() In many homes, it would cost less to seal all of the gaps and holes between the house and attic and add additional insulation. The more insulation you have in your attic - if it's properly installed without air leaks between the house and the attic - the less you will save with a radiant barrier. Are there better ways to invest your money that would reduce your energy bills? What other factors should you consider? But if you spend $1,000, it's not nearly as clear. If you spend $200 and save $45 every year, that may be a worthwhile investment. The answer to this question is more complicated and depends on cost. ![]() Studies by Oak Ridge National Lab and Florida Solar Energy Center documented, on average, a 2–10 percent reduction in the air conditioning bills of homes with radiant barriers (foil) installed in the attic, but almost no savings on heating costs during the winter. None of the radiant barrier products qualifies for federal energy tax credits. None of the paints and coatings has qualified for the Energy Star label. ![]() Some radiant barrier foil and reflective insulation products have qualified for the Energy Star label, indicating they may save energy when properly installed. ![]() Some reduce radiant heat transfer by about 75 percent, some by much less. The performance of the paints and sprays is much more variable. Most of the foil and reflective insulation products reduce radiant heat transfer by about 96 percent. Do they actually reduce radiant heat transfer? This is both an insulation and a radiant barrier. Sometimes, products combine more than one type, such as foil-faced bubble wrap installed in an open attic. Reflective insulation such as foil-faced bubble wrap products There are three primary types of radiant barrier products on the market:įoils and films usually reinforced for strengthĬoatings such as radiant barrier paints or sprays The idea is that by reducing radiant heat gain into the attic, for instance, you will use less energy to cool the house in the summer. Radiant barriers and reflective insulation products are installed in buildings to reduce radiant heat transfer, which is one of the ways buildings gain heat in the summer and lose heat in the winter. Learn the facts about radiant barriers and reflective insulation products to determine if they are a wise investment for achieving energy and cost savings in your home. ![]()
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May 2023
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