The Ontario Building Code | Priming of Steel Beams
9.23.8.2. Priming of Steel Beams
(1) Exterior steel beams susceptible to corrosion shall be shop primed with rust-inhibitive paint.
In Plain Language
Steel beams must be primed as set out in this article, protecting against corrosion before the beam is enclosed within the building's structure.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.