A software tool, often web-based, assists in determining required ventilation rates for single-family homes and multifamily dwellings up to three stories in height. This tool typically employs algorithms based on the residential ventilation standard published by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), specifically Standard 62.2. Input parameters might include the number of bedrooms, square footage of the dwelling, climate zone, and whether natural or mechanical ventilation is employed. The output usually provides the required airflow rates for the whole house and individual rooms.
Proper ventilation is crucial for maintaining indoor air quality and occupant health. Using such a tool helps ensure compliance with the ASHRAE 62.2 standard, minimizing the risk of excessive moisture, pollutants, and other indoor air quality issues. This, in turn, can reduce the likelihood of respiratory problems and other health concerns for residents. Historically, determining ventilation rates was a more complex process. Standardized tools simplify the process and make it more accessible for builders, contractors, and homeowners. This contributes to healthier and more sustainable buildings.