The most important principle of drying is to understand the transfer of energy. No one can argue that drying at the correct temperature is the most effective way to restore a wet structure to its pre-loss condition. Dry too slowly, dry too fast, dry too little, or drying too long are all problematic. Moreover, ANSI/IICRC S500 defines the purpose of drying structural materials in ways that assist restorers by using procedures that are quick, efficient and cost effective.
Humidity, airflow, temperature and time (HATT principle) are four elements commonly referred to as the “Drying Pie.” Drying time is directly related to the temperature differential between water trapped in materials and the surrounding air, making heat, arguably, one of the most practical ways to dry. The exchange of heat and water vapor from a wet surface determines how quickly a surface will dry. This has been shown in numerous studies on various materials.