Inspector Nation presents a tool to help the inspector evaluate the conditions in a closed or naturally ventilated foundation or attic crawl space. Determine dew point and equilibrium wood moisture content readings based on relative humidity and temperature. This calculator will provide essential information to aid the inspector in determining if the crawl space system is functioning as intended or if further evaluation is needed. Locate hidden moisture sources, improperly insulated duct work, leaks, or incorrectly designed closed crawl space system based on simple comparisons of actual and expected conditions.