What should moisture readings be for internal walls?

Ensuring adequate moisture control for internal walls is essential for maintaining energy efficiency and a healthy indoor environment. Moisture can damage walls, insulation, and finishes, leading to mold and mildew growth, which can compromise air quality and structural integrity.

The optimal moisture content for internal walls varies depending on the material composition and climate conditions. Generally, moisture levels should be below 15% for gypsum walls and below 20% for timber walls. However, it’s recommended to consult with a qualified professional for specific guidance based on local building codes and regulations.

To ensure proper moisture control, consider the following measures:

• Install an effective vapor barrier on the warm side of the wall to prevent moisture from penetrating into the wall cavity.
• Use moisture-resistant materials for internal wall coverings, such as tile or vinyl.
• Provide adequate ventilation to reduce moisture accumulation, especially in bathrooms, kitchens, and laundry rooms.
• Inspect internal walls regularly for signs of moisture damage, such as stains, discoloration, or mold growth.
• Address any moisture issues promptly to prevent further damage and maintain a healthy indoor environment.