Moisture Mapping Acceptable Moisture Levels for Internal Walls

Introduction

Moisture Mapping is a valuable tool for assessing and addressing moisture issues in buildings. Understanding acceptable moisture levels for internal walls is crucial for maintaining a healthy and durable indoor environment.

Acceptable Moisture Levels

The acceptable moisture content for internal walls varies depending on the material used in construction. Generally, the moisture content should:

• Be below 15% for gypsum board and plaster
• Be between 7-12% for wood
• Be below 5% for concrete

What Should Moisture Readings Be for Internal Walls?

Moisture readings for internal walls are typically taken using a moisture meter. Acceptable readings will vary based on the material and environmental conditions. However, as a general guideline:

• Gypsum board and plaster: Readings below 15% are acceptable.
• Wood: Readings between 7-12% are ideal, but up to 15% may be acceptable in certain cases.
• Concrete: Readings below 5% are acceptable.

It’s important to note that these readings may vary based on factors such as building age, ventilation, and insulation. If moisture levels are consistently above the recommended range, it may indicate a moisture problem requiring investigation and remediation.

Conclusion

Accurate Moisture Mapping is essential for maintaining acceptable moisture levels in internal walls. By understanding the recommended levels and monitoring moisture readings, building owners and managers can proactively address moisture issues and ensure the health and longevity of their structures.