Construction codes of Ontario

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Required Flashing at Intersections

Required Flashing at Intersections (1) Except where the omission will not adversely affect adjacent supported or supporting elements, flashing shall be installed at junctions between roofs and, (a) walls that rise above the roof, and (b) guards that are connected to the roof by other than pickets or posts. (2) Revoked: O. Reg. 88/19, s. […]

Required Protection of Roofs

Required Protection of Roof Products (1) Roofs shall be protected with roofing, including flashing, installed so as to, (a) effectively shed water, (b) prevent the ingress of water and moisture into building assemblies and occupied space, and (c) minimize the ingress of water due to ice damming into building assemblies. (2) Compliance with […]

Required Venting

Required Venting (1) Except where it can be shown to be unnecessary, where insulation is installed between a ceiling and the underside of the roof sheathing, a space shall be provided between the insulation and the sheathing, and vents shall be installed to permit the movement of air from the space to the exterior. Article 9.19.1.1 […]

Restraint of Joist Bottoms

Restraint of Joist Bottoms (1) Except as provided in Sentence 9.23.9.4.(1), bottoms of floor joists shall be restrained from twisting at each end by toe-nailing to the supports, end-nailing to the header joists or by providing continuous strapping, blocking between the joists or cross-bridging near the supports. Article 9.23.9.3. Ontario Regulation 332/12 Building Code, Information […]

Restraint of Joist Bottoms

Restraint of Joist Bottoms (1) Roof joists supporting a finished ceiling, other than plywood, OSB or waferboard, shall be restrained from twisting along the bottom edges by means of furring, blocking, cross bridging or strapping conforming to Article 9.23.9.3. Article 9.23.13.9 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Ridge board or ridge beam

Ridge board or ridge beam A ridge board (see Figure 83) or a ridge beam (see Figure 84) is used to ensure a level ridgeline and to facilitate placement of the rafters. Erect rafters in pairs and nail them to the ridge board or beam. Toe-nail the lower ends to the wall plate. Locate each […]

Ridge Support

Ridge Support (1) Except as provided in Sentence (4), roof rafters and joists shall be supported at the ridge of the roof by, (a) a loadbearing wall extending from the ridge to suitable bearing, or (b) a ridge beam supported by not less than 89 mm length of bearing. (2) Except as provided in Sentence […]