Construction codes of Ontario

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Maximum Spans for Hem – Fir Lintels – No. 1 or No. 2 Grade – Non-Structural Sheathing(1)

Maximum Spans for Hem – Fir Lintels – No. 1 or No. 2 Grade – Non-Structural Sheathing(1) Table A-14 Forming Part of Sentences 9.23.12.3.(1) and (3) and 9.37.3.1.(1) Notes to Table A-14: (1) Where structural sheathing is used, lintel spans may be increased by 15%. Structural sheathing consists of a minimum 9.5 mm thick structural panel […]

Maximum Spans for Spruce – Pine – Fir Lintels – No. 1 or No. 2 Grade – Non-Structural Sheathing(1)

Maximum Spans for Spruce – Pine – Fir Lintels – No. 1 or No. 2 Grade – Non-Structural Sheathing(1) Table A-15 Forming Part of Sentences 9.23.12.3.(1) and (3) and 9.37.3.1.(1) Notes to Table A-15: (1) Where structural sheathing is used, lintel spans may be increased by 15%. Structural sheathing consists of a minimum 9.5 mm thick […]

Means of Egress

Means of Egress Windows can allow occupants to escape to the outdoors (provide a means of egress) if fire blocks the usual exit paths from a room. Each basement bedroom must have at least one outside window (or exterior door) operable from the inside without the use of tools or special knowledge and without the […]

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., […]

Moisture, Air Leakage, Vapour Diffusion and Heat Transfer Control

Moisture, Air Leakage, Vapour Diffusion and Heat Transfer Control In modern wood-frame houses, continuous insulation is needed to provide energy efficiency and comfort. A continuous air barrier system will restrict air movement into and out of a house, help provide thermal comfort, reduce heat loss and avoid moisture condensation in the walls and ceilings that […]

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.