Chapter 9:                      Ventilation

This chapter discusses ventilation, fans, termination fittings, and ducts. Before installing a ventilation system, read “Health and Safety” on page 21 for more information on controlling the sources of moisture and indoor air pollutants.

This chapter covers these types of ventilation.

       Local ventilation

       Whole-building ventilation

       Attic and crawl space ventilation

       Ventilation for cooling