Principles of Condensation
Condensation is the change of water vapor into liquid water. The temperature at which this change occurs is the dew point. Condensation occurs when the temperature of the air holding the water vapor is lowered to the dew point temperature. Cold temperatures increase the likelihood of condensation; warm temperatures reduce it. 

Drying Potential
A related issue to condensation is evaporation, or drying potential. Drying potential plays a role in the ability of a wall assembly to dry out if bulk water intrusion (e.g., a leak) has occurred. Many experts often discuss drying potential as it relates to water vapor permeability, but rarely discuss the relationship between drying potential and temperature.

Temperature has a very strong effect on drying potential: The warmer the surface, the more rapidly it will dry.

Unlike a typical steel stud wall assembly, the THERMAXâ„¢ Wall System provides a warm, conditioned cavity, which allows water that enters the cavity to evaporate faster.

 

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