Construction codes of Ontario

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Spans for Joists, Rafters and Beams

Spans for Joists, Rafters and Beams (1) Except as required in Sentence (2) and Article 9.23.13.10., the spans for wood joists and rafters shall conform to the spans shown in Tables A-1 to A-7 for the uniform live loads shown in the Tables. (2) Spans for floor joists that are not selected from Tables A-1 and […]

Specified Loads – Application

Specified Loads – Application (1) This Subsection applies to light-frame construction whose wall, floor and roof planes are generally comprised of frames of small repetitive structural members, and where, (a) the roof and wall planes are clad, sheathed or braced on at least one side, (b) the small repetitive structural members are spaced not […]

Specified Snow Loads

(1) Except as provided in Sentences (2) and (3), specified snow loads shall be not less than those calculated using the following formula: S = Cb ∙ Ss + Sr where, S = specified snow load, Cb = basic snow load roof factor, which is 0.45 where the entire width of a roof does not exceed 4.3 […]

Standards for Nails and Screws

Standards for Nails and Screws (1) Except as provided in Sentence (2) and elsewhere in this Part, nails specified in this Section shall be common steel wire nails or common spiral nails, conforming to, (a) ASTM F1667, “Driven Fasteners: Nails, Spikes and Staples”, or (b) CSA B111, “Wire Nails, Spikes and Staples”. (2) Nails used […]

Starter Strip Asphalt Shingles on Slopes of Less Than 1 in 3

Starter Strip Asphalt Shingles on Slopes of Less Than 1 in 3 (1) A starter strip shall be installed as in Article 9.26.7.2. (2) Starter strips required in Sentence (1) shall be laid in a continuous band of cement not less than 200 mm wide. Article 9.26.8.2. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca […]

Starter Strip with Asphalt Shingles on Slopes of 1 in 3 or Greater

Starter Strip with Asphalt Shingles on Slopes of 1 in 3 or Greater (1) A starter strip shall be installed along the lower edge of the roof so that it extends approximately 12 mm beyond the eaves and rake of the roof and fastened along the bottom edge with nails spaced not more than 300 mm […]

Steel Beams Spans

Steel Beams Spans (1) The spans for steel beams with laterally supported top flanges shall conform to Table 9.23.4.3. for floors and Tables A-20 to A-29 for roofs and floors. (2) Beams described in Sentence (1) shall at least meet the requirements for Grade 350 W steel in CSA G40.21, “Structural Quality Steel”. (3) A beam may be […]