The IICRC WRT body of knowledge requires that restorersrecord and monitor drying measurements at least daily. Daily monitoring ensures that drying systems are functioning properly, drying goals are being approached, and adjustments can be made promptly if progress stalls.

Measurements typically include air temperature, relative humidity, humidity ratio, dew point, and moisture content or moisture levels of affected materials. The WRT manual emphasizes trend analysis—comparing daily readings to confirm consistent moisture reduction.

Infrequent monitoring increases the risk of unnoticed equipment failure, elevated humidity, condensation, or secondary damage. Weekly or bi-weekly monitoring does not meet the professional standard of care outlined in the ANSI/IICRC S500 Standard.

Daily documentation also supports defensibility by demonstrating continuous oversight and proactive management of the drying process. It provides transparency to materially interested parties and ensures accountability throughout the project lifecycle.