Meaning Of The Word R-value

Real Dictionary
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  2. R Words Definitions
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R-value Meaning

R-value Definition
R-value Definition

What's The Definition Of R-value?

R-value in American English
a measurement indicating the resistance of a given thickness of material, esp. insulating material, to the flow of heat: the higher the R-value, the greater the insulation
noun: a measure of the resistance of an insulating or building material to heat flow, expressed as R-11, R-20, and so on; the higher the number, the greater the resistance to heat flow

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