408.30544 Light, ventilation and heating.
303.4.2. Exhaust openings. Outside exhaust openings shall be located as not to create a
nuisance. Exhaust openings shall not be directed onto walkways. Exhaust openings shall not
terminate within 2 feet of a ventilated section in a soffit.
R 408.30507 Exhaust installation.
G2439.3 (614.4). Exhaust installation. Dryer exhaust ducts for clothes dryers shall
terminate on the outside of the building, shall not terminate within 4 feet of a ventilated
section in a soffit, and shall be equipped with a backdraft damper. Screens shall not be
installed at the duct termination. Ducts shall not be connected or installed with sheet
metal screws or other fasteners that will obstruct the flow. Clothes dryer exhaust ducts
shall not be connected to a ventilator connector, vent, or chimney. Clothes dryer exhaust ducts
shall not extend into or through ducts or plenums.