What should moisture readings be for internal walls?

The ideal moisture content for internal walls is between 0-15%. Anything above 15% is considered high and can lead to problems.

Causes of High Moisture Content in Internal Walls

Several factors can contribute to high moisture content in internal walls:

• Water Leaks: Leaks from plumbing, roofs, or windows can introduce excessive moisture into walls.
• Condensation: When warm, humid air comes into contact with cooler surfaces, condensation occurs, often leading to moisture buildup in walls.
• Poor Ventilation: Inadequate ventilation in rooms can trap moisture, causing it to seep into walls.
• Ground Moisture: Walls in contact with the ground can absorb moisture from the soil, especially in areas with high water tables.
• Construction Defects: Improperly installed or damaged building materials can allow water penetration and increase moisture levels.
• Seasonal Changes: High humidity during certain seasons can lead to elevated moisture levels in walls.