Moisture Mapping Acceptable Moisture Levels for Internal Walls

Moisture Mapping is a technique used to identify and locate areas of moisture intrusion within a structure. It involves the use of specialized equipment to measure moisture levels in building materials such as drywall, plaster, and wood.

Acceptable Moisture Levels

Acceptable moisture levels for internal walls vary depending on the material and the climate. However, as a general rule, moisture levels should not exceed 15% in most building materials.

What should moisture readings be for internal walls?

  • For drywall, acceptable moisture levels are typically between 5% and 10%.
  • For plaster, acceptable moisture levels are typically between 5% and 12%.
  • For wood, acceptable moisture levels are typically between 6% and 12%.

Higher moisture levels can indicate the presence of moisture problems, such as leaks, condensation, or water damage. If moisture levels are found to be excessive, it is important to investigate the source of the moisture and take steps to resolve the issue.

Moisture mapping is a valuable tool for identifying and addressing moisture problems in buildings. By understanding acceptable moisture levels and using proper techniques to measure moisture, building professionals can help ensure the health and safety of occupants and extend the lifespan of structures.