Construction codes of Ontario

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Mezzanines ceiling height

Mezzanines ceiling height (1) The ceiling height above and below a mezzanine floor assembly in all occupancies shall be not less than 2 100 mm. Article 9.5.3.2 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Minimum Lumber Grades for Specific End Uses – Table

Table 9.3.2.1.Minimum Lumber Grades for Specific End Uses Forming Part of Sentences 9.3.2.1.(1) and 9.3.2.2.(1). Table 9.3.2.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Minor Combustible Components

(1) The following minor combustible components are permitted in a building required to be of noncombustible construction: (a) paint, (b) self-adhesive tapes, mastics and caulking materials applied to provide flexible seals between the major components of exterior wall construction, (c) fire stops conforming to Sentence 3.1.9.1.(1) and fire blocks conforming to Article 3.1.11.7., […]

Nails for Fastening Gypsum Board

Nails for Fastening Gypsum Board (1) Nails for fastening gypsum board to wood supports shall conform to, (a) ASTM F1667, “Driven Fasteners: Nails, Spikes and Staples”, or (b) CSA B111, “Wire Nails, Spikes and Staples”. Article 9.29.5.6. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only. Nail Attachment Gypsum […]

Natural Ventilation Area

(1) The unobstructed openable ventilation area to the outdoors for rooms and spaces in a residential occupancy ventilated by natural means shall conform to Table 9.32.2.1. (2) Where a vestibule opens directly off a living or dining room within a dwelling unit, ventilation to the outdoors for such rooms may be through the vestibule Article 9.32.2.1 Ontario […]

Natural Ventilation Table

Table 9.32.2.1.Natural Ventilation Table Forming Part of Sentence 9.32.2.1.(1) Table 9.32.2.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Notching of Lumber Roof, Ceiling or Floor Joists

Notching of Lumber Roof, Ceiling or Floor Joists Notches made on the upper side of lumber joists near their ends (Figure 148) must be located within one-half the joist depth from the edge of the bearing and their depth cannot be more than one-third of the joist depth. Notches are not permitted on the bottom […]