Construction codes of Ontario

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Interior Insulation

Interior Insulation Foundation walls may be insulated on their interior surfaces. Framing materials should be separated from a concrete wall by dampproofing materials. Polyethylene should not be used for this purpose with new concrete walls because it does not allow the drying of moisture escaping from the concrete. Building paper protects the framing and insulation […]

Interior Wall and Ceiling Finishes

Interior Wall and Ceiling Finishes Gypsum board (drywall) is the most common interior finish in Canadian houses. In addition to providing a smooth, paintable surface, gypsum board provides a degree of fire resistance to lightweight structural framing, allowing walls and floors to remain in place to provide some time for occupants to become aware of […]

Joints in Top Plates

Joints in Top Plates (1) Joints in the top plates of loadbearing walls shall be staggered not less than one stud spacing. (2) The top plates in loadbearing walls shall be lapped or otherwise suitably tied at corners and intersecting walls in accordance with Sentence (4). (3) Joints in single top plates used with loadbearing walls […]

Joists Supported by Beams

Joists Supported by Beams (1) Floor joists may be supported on the tops of beams or may be framed into the sides of beams. (2) When framed into the side of a wood beam, joists referred to in Sentence (1) shall be supported on, (a) joist hangers or other acceptable mechanical connectors, or (b) not […]

Lateral Support Required

Lateral Support Required (1) Masonry walls shall be laterally supported by floor or roof construction or by intersecting masonry walls or buttresses. (2) The spacing of supports required in Sentence (1) shall be not more than, (a) 20 times the wall thickness for all loadbearing walls and exterior non-loadbearing walls, and (b) 36 times […]

Lateral Support Required

Laundry Fixtures

Laundry Fixtures (1) Laundry facilities or a space for laundry facilities shall be provided in every dwelling unit or grouped elsewhere in the building in a location conveniently accessible to occupants of every dwelling unit. Article 9.31.4.2 Ontario Regulation 332/12 Building Code, O. Reg. 332/12: BUILDING CODE (ontario.ca) © Queen’s Printer for Ontario, 2021