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The U-value and which other value are inverses of each other?

  1. K-Value

  2. R-Value

  3. Z-Value

  4. T-Value

The correct answer is: R-Value

The U-value and R-value are inverses of each other because they both measure the effectiveness of insulation in a material. The U-value is a measure of thermal conductivity, representing how well a material conducts heat through it, while the R-value is a measure of thermal resistance, representing how well a material resists the transfer of heat. In other words, the higher the U-value, the less effective the insulation is, while the higher the R-value, the more effective the insulation is. The K-value, Z-value, and T-value are not measures of insulation effectiveness and therefore, are not inverses of the U-value.