The ventilation system must bring in a sufficient amount of outside air, and remove pollutants and substances hazardous to health. The ventilation must also help to prevent pollutants from spreading from less clean rooms to clean rooms, for example from kitchens and toilets to bedrooms and living rooms.
1.1 - Circulation from room to room
2.0 - Circulation between floors
3.0 - Ventilation into the building
Flow - Exhaust air from the building
Crawl space - Prevent moisture and mold under the building
Wind - Prevent mold growth and prevent spores and contaminants from finding their way into the living environment.
Ventilation is mainly about creating flows, flows from outside and into the house and flow around the house to take advantage of the already accumulated heat in the house and spread it out evenly.
