InterNACHI HEA Practice Questions - InterNACHI Certified Home Energy Auditor Exam

How is U-factor related to R-value for a building assembly?

U-factor equals R-value squared U-factor is the reciprocal of R-value (U = 1/R) U-factor equals R-value times surface area They are unrelated metrics for different materials

Correct Answer:

U-factor is the reciprocal of R-value (U = 1/R)

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