How Do I Check and Control Indoor Moisture to Prevent Mold Growth?

Indoor humidity can sometimes be problematic in your home—especially during the Winter months. Ensure your new Excel home is moisture-smart with these simple steps.

  • Respond to any water intrusions and repair or stop water leaks upon discovery
  • Manual removal of water and ventilation are required to mitigate damages
  • Respond to any signs of mold growth immediately
  • Maintain optimum indoor humidity levels between 30% – 40%. During cold weather, Edmonton optimum indoor humidity levels are between 10% – 20%.
  • Check humidifier settings and adjust according to the exterior temperature; lower indoor humidity levels are required in colder weather
  • High indoor humidity levels inside the home will be indicated by moisture and frost build-up on exterior door handles, window glass, window/door frames and possibly within in a HRV (Heat Recovery Ventilator) where installed
  • Proper maintenance of the mechanical systems is required to ensure optimum performance
  • Follow the manufacturer's recommendations for proper HVAC (Heating, Ventilation and Air Conditioning) system operation and maintenance
  • Operate ventilation fans regularly, this is especially critical before, during and after showering or bathing
  • Make sure that floor vents and basement ceiling vents are open and unrestricted (never close fully)
  • Perform regular building inspections watching for signs of moisture damage
  • Restrict and monitor the usage of additional personal humidifiers, indoor plants, water features and aquariums; these are some of the many contributors to extra humidity in homes
  • Leave an air gap between your belongings, furniture and exterior wall
  • Keep items stored in the basement off the floor and away from the mechanical systems
  • Inspect basement poly for any rips, cuts or tears
  • Hiring professionals for any future alterations to the original structure is highly recommended
  • If sharing or leasing any of the structure to others, please communicate these moisture and mold prevention requirements to all occupants

 

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Last updated on May 13, 2024.