Understanding moisture readings in internal walls is crucial after water intrusion events to prevent structural damage and health issues. When water penetrates a wall, it can create ideal conditions for mold growth, reducing indoor air quality and potentially causing respiratory problems. Accurate moisture readings enable timely intervention and necessary repairs.
What Should Moisture Readings Be for Internal Walls?
Moisture readings for internal walls vary depending on several factors, including the type of wall material, climate, and time since water intrusion. Generally, readings should fall within the following ranges:
- Wood studs: 8-14% moisture content (MC)
- Drywall: 0-5% MC
- Plaster: 5-10% MC
- Brick or stone: 2-8% MC
Interpreting Moisture Readings
* Readings above these ranges indicate excessive moisture and warrant further investigation.
* Moisture levels may vary slightly throughout a wall, so multiple readings are recommended.
* Sudden or significant increases in moisture readings should be addressed promptly.
Steps to Assess Moisture Readings
1. Use a reliable moisture meter to obtain readings.
2. Insert the meter’s prongs into the wall at various depths and locations.
3. Record the moisture readings in each location.
4. Compare the readings to the guidelines above.
5. If excessive moisture is detected, consult a qualified professional for further evaluation.