In this text, we have used two quantities to specify the insulating value of a material??-value and R-value. Explain the difference between the two.
What will be an ideal response?
?-value refers to the R-value of 1-in.-thick material. For example, if the ?-value of a material is 5.0, the R-value of the same material, 3-in-thick = 5.0 × 3 = 15.
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