A whole house fan needs adequate attic ventilation -- usually significantly more square footage of vent area than a typical attic already has -- to exhaust the volume of air the fan moves without pressurizing the attic. This service evaluates existing venting and adds ridge, soffit, or gable vents as needed to support the fan's airflow.

  • Evaluates existing attic vent capacity against fan airflow needs
  • Adds ridge, soffit, or gable vents where needed
  • Prevents attic over-pressurization during fan operation