The Ontario Building Code | Transparent Doors and Panels
(1) Except for dwelling units and as permitted by Sentence (4), a glass or transparent door shall be designed and constructed so that the existence and position of the door is readily apparent, by attaching non-transparent hardware, bars or other permanent fixtures to it.
(b) wireref ="http://thehandyforce.com/electrical/" title ="Electricians in East York">wired glass conforming to CAN/cgsb-12.11-M, "wireref ="http://thehandyforce.com/electrical/" title ="Electricians in East York">wired Safety glass".
(3) Except as permitted by Sentence (4), transparent panels used in an access to exit that, because of their physical configuration or design, could be mistaken as a means of egress shall be made inaccessible by barriers or railings.
(4) Sliding glass partitions that separate apublic corridor from an adjacent occupancy and that are intended to be open during normal working hours need not conform to Sentences (1) and (3), provided the partitions are suitably marked to indicate their existence and position.
(6) A window in a public area that extends to less than 1 070 mm above the floor and is located above the second storey in a building of residential occupancy, shall be protected by a barrier or railing from the floor to not less than 1 070 mm above the floor, or the window shall be non-openable and designed to withstand the lateral design loads for balcony guards required by Article 18.104.22.168.