Moisture mapping is a process of measuring and recording moisture levels in building materials. This information can be used to identify areas of high moisture that may be at risk for mold growth, rot, or other damage. ### Moisture Monitoring Equipment There are a variety of moisture monitoring equipment available, each with its own advantages and disadvantages. Some of the most common types of equipment include: * **Pin-type moisture meters:** Insert pins into the material being tested. The prongs complete a circuit and moisture levels are read based on the amount of resistance. * **Non-pin moisture meters:** Use electromagnetic waves to measure moisture levels. They are non-invasive and can be used on most materials. * **Infrared cameras:** Create thermal images that can show areas of high and low moisture. They are non-invasive and can be used on a variety of surfaces. ### What Tool Is Used to Measure Moisture? Pin-type moisture meters are the most commonly used tools for measuring moisture in building materials. They are relatively inexpensive, easy to use, and provide accurate results. Insert the pins into the material being tested. The prongs complete a circuit and moisture levels are read based on the amount of resistance. Higher resistance indicates lower moisture content, while lower resistance indicates higher moisture content.