Moisture mapping is a process of measuring and documenting the moisture levels in a building or structure. It is used to identify areas that may be at risk for moisture damage or mold growth. ### Acceptable Moisture Levels Acceptable moisture levels in walls, floors, and ceilings vary depending on the material and climate. However, general guidelines recommend: * Wood: Less than 15% moisture content * Concrete: Less than 4% moisture content * Gypsum board: Less than 0.5% moisture content ### How Much Moisture is OK in Walls? The acceptable moisture level in walls depends on the following factors: * Wall material (wood, concrete, etc.) * Climate * Age of the building * Presence of a moisture barrier **In general, moisture levels below 10% are considered acceptable for most wall materials.** However, higher moisture levels may be acceptable in climates with high humidity or in older buildings. It is important to note that moisture levels can fluctuate over time, especially in response to changes in temperature and humidity. Therefore, it is important to monitor moisture levels regularly and address any problems that arise. If you are concerned about the moisture levels in your home or office, it is important to contact a qualified moisture mapping professional to assess the situation and recommend remediation steps if necessary.