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What are R-values and U-values?

April 26, 2017r-values u-values

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What are R-values and U-values?

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The R-value is the resistance a material has to the flow of heat (the higher the R-value, the greater the insulating value). R-value is the opposite, or reciprocal of U-value. The U-value is the amount of heat that is transferred through a material – the lower the U-value, the better insulating quality. U-value is the opposite, or reciprocal of R-value.

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R-value is the resistance a material has to heat flow. The higher the R-value, the greater the resistance. U-value is the amount of heat transferred through a material. The lower the U-value, the slower the rate of heat flow and the better the insulating quality.