### What is Moisture Mapping? Moisture Mapping is the non-invasive detection of moisture in walls and other surfaces without causing any damage. This process is used to identify and locate areas of moisture intrusion, assess the extent of moisture damage, and monitor drying progress over time. ### Acceptable Moisture Levels for Internal Walls The presence of moisture in internal walls can lead to a number of problems, including mold growth, structural damage, and health concerns. As such, it is important to identify and address any areas of moisture intrusion promptly. The acceptable moisture level for internal walls varies depending on the type of wall construction and the environmental conditions. However, as a general rule, the moisture content of internal walls should not exceed 15%. A higher moisture content indicates the presence of moisture intrusion that may require further investigation and remediation. ### What Should Moisture Readings Be for Internal Walls? Moisture readings for internal walls are typically expressed as a percentage of the total moisture content. A moisture reading of 0% indicates that the wall is completely dry, while a reading of 100% indicates that the wall is saturated with water. As previously mentioned, the acceptable moisture level for internal walls is generally 15% or less. However, it is important to note that this is just a general guideline. The actual acceptable moisture level for a particular wall may be higher or lower depending on the specific circumstances.