The Ontario Building Code | Required Ventilation

6.2.2.1. Required ventilation

(1) Except as provided in Sentence (3), all buildingsshall be ventilated in accordance with this Part.

(2) Except in storage garages and repair garagescovered by Article 6.2.2.3., the rates at which outdoorref ="http://thehandyforce.com/doors/" title ="Toronto Door installer">door air is supplied in buildings by ventilation systems shall be not less than the rates required by ANSI/ASHRAE 62.1, "Ventilation for Acceptable Indoor Air Quality".

(3) Self-contained mechanical ventilation systems serving only one dwelling unit shall conform to,

Note: On July 1, 2017, Sentence 6.2.2.1.(3) of Division B of the Regulation is amended by striking out "only one dwelling unit" in the portion before Clause (a) and substituting "a house or an individual dwelling unit". (See: O. Reg. 139/17, s. 50)

(a) this Part, or

(b) Subsection 9.32.3.

(4) Live/work units shall be mechanically ventilated in accordance with the requirements of Sentence (1).