Are Bathroom Exhaust Fans Required By Code. These systems are commonly either bathroom exhaust fans or remote in-line fans. However the ventilation may be from a window or exhaust fan as per your choice.
Generally the size of the fan should match the square footage of the bathroom to provide the proper amount of ventilation. As a general rule a bathroom fan is not required by code if there is an openable window in the bathroom. An exhaust fan will ventilate the bathroom much more effectively compared to a.
Chapter 15 is specific to exhaust systems related to clothes dryers domestic cooking toilet rooms bathrooms and whole-house ventilation systems.
Even if a bathroom exhaust fan is not required for building codes they are recommended to improve your homes air quality. Tables 2a and 2b lists key issues in the building codes that affect indoor quality in residential and commercial buildings respectively along with provisions of ASHRAE Standards 622 for residential buildings and 621 for commercial buildings. Ventilation Requirements for Australia. Toilet room is not considered a bathroom.
