PART 2 — RESERVEDUpdated for the 2024 Ontario Building Code
Try BUILDAiD Beta
2.4.2.3.Controlled-Atmosphere Storage Areas (See Note A-2.4.2.3.)
(1) This Article applies to controlled-atmosphere storage areas that, during storage periods, contain an atmosphere with
an oxygen content less than 19.5% or more than 23% by volume.
(2) During storage periods, controlled-atmosphere storage areas need not comply with Sentence 2.4.2.1.(1).
(3) Prior to a controlled-atmosphere storage area being accessed after a storage period and while the storage area is
accessible between storage periods, the ventilation system of the storage area shall
(a) supply outdoor air to the storage area at a rate in accordance with Sentence 2.4.2.1.(1), and
(b) ensure that the atmosphere in the storage area has an oxygen content not less than 19.5% and not more than 23% by
volume.
(4) A warning sign shall be provided at each entrance to a controlled-atmosphere storage area in accordance with
Sentence 2.14.2.1.(5) of Division B of the NRCC-CONST-56437E 2020, “National Fire Code of Canada.”
Understand this provision in seconds
BUILDAiD Assist explains any article of the building code in plain English — with exact citations, exceptions and related requirements.
Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.