Construction codes of Ontario

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Termite Protection

Termite Protection (1) Where termites are known to exist, unless pressure-treated with a chemical that is toxic to such termites in accordance with Article 9.3.2.9., wood steps shall rest on a non-cellulosic base or apron extending at least 150 mm above the ground. (2) Wood lattice or skirting around porches shall be separated from piers and soil […]

Thickness of Exterior Walls Masonry

Thickness of Exterior Walls Masonry (1) Masonry exterior walls, other than cavity walls, in 1 storey buildings and the top storeys of 2 and 3 storey buildings shall be not less than 140 mm thick provided the walls are not more than 2.8 m high at the eaves and 4.6 m high at the peaks […]

Thickness of Flat Insulating Concrete Form Walls

Thickness of Flat Insulating Concrete Form Walls (1) The thickness of concrete in flat insulating concrete form walls not in contact with the ground shall be, (a) not less than 140 mm, and (b) constant for the entire height of the wall. Article 9.20.17.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca […]

Through-Wall Flashing

Through-Wall Flashing A through-wall flashing intercepts and directs any water flowing down the cavity to the exterior (see Figures 120 and 121). Figure 120 Figure 121 Oncodes.ca publishes this information for educational purposes only (CMHC)

Ties for Masonry Veneer

Ties for Masonry Veneer (1) Masonry veneer 70 mm or more in thickness and resting on a bearing support shall be tied to masonry back-up or to wood framing members with straps that are, (a) corrosion-resistant, (b) not less than 0.76 mm thick, (c) not less than 22 mm wide, (d) shaped […]

Ties for Masonry Veneer Table

Table 9.20.9.5.Veneer Tie Spacing Forming Part of Sentence 9.20.9.5.(1) Table 9.20.9.5 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Top Plates

Top Plates (1) Top plates in walls shall not be notched, drilled or otherwise weakened to reduce the undamaged width to less than 50 mm unless the weakened plates are suitably reinforced. Article 9.23.5.4. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.