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How is its effectiveness measured?

April 26, 2017measured

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How is its effectiveness measured?

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Unlike insulation, radiant barriers do not have a significant R-value. Their effectiveness is measured in their emissivity rating. Lo/Mit’s impressive rating of 0.23 means that it can effectively prevent 0.77% of the sun’s heat from entering your home through your roof! Foil barriers exceed that rating, but modern residential construction practices often make them an impractical and costly avenue to pursue. If your home was built after 1950, a sprayed-on coating is the choice for you!