The Ontario Building Code | Material Standards for Glass
9.6.1.2. Material Standards for glass
(1) glass shall conform to,
(a) CAN/cgsb-12.1-M, "Tempered or Laminated Safety glass,"
(b) CAN/cgsb-12.2-M, "Flat, Clear Sheet glass",
(c) CAN/cgsb-12.3-M, "Flat, Clear Float glass",
(d) CAN/cgsb-12.4-M, "Heat-Absorbing glass,"
(e) CAN/cgsb-12.8, "insulating Glass Units",
(f) CAN/cgsb-12.10-M, "glass, light and Heat Reflecting",
(g) CAN/cgsb-12.11-M, "wireref ="http://thehandyforce.com/electrical/" title ="Electricians in East York">wired Safety glass", or
(h) ASTM E2190, "insulating Glass Unit Performance and Evaluation".
(2) Mirrored glass doors are permitted to be used only at the entrance to clothes closets and shall conform to the requirements of CAN/cgsb-82.6-M, "doors, Mirrored glass, Sliding or Folding, Wardrobe".
(3) Mirrored glass doors reinforced with a film backing shall meet the impact resistance requirements specified in CAN/cgsb-12.5-M, "Mirrors, Silvered".
In Plain Language
Glass used in construction must conform to the material standards referenced in this article, ensuring consistent quality and safety performance.
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.