Applied Structural Drying Practice Questions - IICRC Applied Structural Drying (ASD) Exam

Why is specific humidity (GPP) a better measure of drying progress than relative humidity (RH)?

RH is a percent and percents cannot be subtracted GPP is absolute and does not change with temperature alone, while RH varies with temperature GPP is easier to measure in the field RH is only meaningful below 50 F

Correct Answer:

GPP is absolute and does not change with temperature alone, while RH varies with temperature

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