Improving Ventilation and Airflow

What should moisture readings be for internal walls?

Maintaining proper internal wall moisture levels is crucial for building integrity and occupant health. Excessive moisture can lead to mold growth, structural damage, and respiratory issues.

Ideal Moisture Levels

  • For internal walls in heated spaces, moisture readings should typically be between 5% and 10%.
  • In unheated spaces, such as garages or basements, moisture levels may be slightly higher, ideally below 15%.

Causes of High Moisture Levels

  • Poor ventilation
  • Leaking pipes or appliances
  • Condensation due to inadequate insulation or improper heating

Improving Ventilation and Airflow

  • Ventilation Systems: Install mechanical ventilation systems, such as exhaust fans or heat recovery ventilation (HRV) units, to increase air circulation.
  • Natural Ventilation: Open windows and doors regularly to allow fresh air to circulate.
  • Air Conditioning: Air conditioning removes moisture from the air, but it should be used in conjunction with ventilation to ensure adequate air exchange.
  • Insulation: Proper insulation prevents condensation by reducing temperature fluctuations and moisture penetration.
  • By following these guidelines, you can ensure optimal ventilation and airflow, minimizing moisture levels in internal walls and maintaining a healthy and comfortable indoor environment.