Construction codes of Ontario

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Floor Drains

Floor Drains (1) A floor drain shall be installed in a basement forming part of a dwelling unit. Article 9.31.4.4 Ontario Regulation 332/12 Building Code, O. Reg. 332/12: BUILDING CODE (ontario.ca) © Queen’s Printer for Ontario, 2021

Floor Framing

Floor Framing A rim joist is end-nailed or toe-nailed to each joist. The joists, including the end joist parallel to the exterior walls, are toe-nailed to the sill plate (Figure 63). The inner portions of the joists are supported on top of load-bearing walls or intermediate beams (Figure 53), or framed into the side of […]

Floor Joists

Floor Joists Joists are selected to meet strength, deflection and vibration requirements on which the joist selection tables are based. The spans in the tables are measured between the inside edges of the joist supports and have been calculated for standard Canadian lumber sizes. Strength requirements ensure the floor joist system is strong enough to […]

Floor Waterproofing System

Floor Waterproofing System (1) Basement floors-on-ground to be waterproofed shall have a system of membrane waterproofing provided between 2 layers of concrete, each of which shall be not less than 75 mm thick, with the floor membrane made continuous with the wall membrane to form a complete seal. Article 9.13.3.5 Ontario Regulation 332/12 Building Code, […]

Framing for a basement window

Framing for a basement window The rough framing for basement windows, doors and other openings, as show in Figure 38, may be installed at the time the foundation wall formwork is erected. Measure and check the diagonals of the frames to ensure that the frames are square. The framing should be properly braced to keep […]

Framing for Floor Openings where Double Headers and Double Trimmers are used

Framing for Floor Openings where Double Headers and Double Trimmers are used When framing for large openings such as stairwells or fireplaces, the trimmer joists must be doubled if they support header joists (joists into which other joists are framed) more than 800 mm (32 in.) long. Header joists longer than 1.2 m (4 ft.) […]

Framing for Plumbing systems

Framing for Plumbing systems The installation of the plumbing system usually begins after the framing is complete. The initial work is called “roughing-in” and includes installing plumbing vents and drains and all hot and cold water piping that will be enclosed in the walls and ceilings and under the basement floor. Since the bathtub must […]