Construction codes of Ontario

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Stepped Flashing

Stepped Flashing Flashing must be provided at the junction between a roof and a masonry wall or chimney. The base flashing should extend at least 150 mm (6 in.) up the side of the chimney or masonry veneer. A common approach is to bend the top of the base flashing and imbed it at least […]

Strapping and Bridging in Tables A-1 and A-2

Strapping and Bridging in Tables A-1 and A-2 (1) Except as permitted by Sentence (5), where strapping is specified in Table A-1, it shall be, (a) not less than 19 mm by 64 mm, nailed to the underside of floor joists, (b) located not more than 2.1 m from each support or other rows […]

Structural Strength

Structural Strength The combination of dimension lumber or engineered wood and wood panel sheathing gives wall, floor and roof assemblies the strength to resist vertical loads (snow, occupants and contents) and horizontal loads (wind and earthquake). Partitions, closets and finishes such as gypsum board (drywall) also add rigidity. Where additional strength is required because of […]

Stud Posts Built into Walls

Stud Posts Built into Walls (1) Except as provided in Sentences (2) and (3), stud posts shall be designed in accordance with Part 4. (2) The number of studs in a wall directly below a girder truss or roof beam shall conform to Tables A-34 to A-37, provided, (a) the studs are fastened together to […]

Studs at Sides of Openings

Studs at Sides of Openings (1) Except as provided in Sentence (2), studs shall be doubled on each side of openings so that the inner studs extend from the lintel to the bottom wall plate and the outer studs extend from the top wall plates to the bottom wall plate. (2) Single studs are permitted to […]

Support for Cladding Materials

Support for Cladding Materials (1) Corners and intersections shall be designed to provide adequate support for the vertical edges of interior finishes, sheathing and cladding materials, and in no instance shall exterior corners be framed with less than the equivalent of two studs. Article 9.23.10.5. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for […]

Support of Beams and Columns

Support of Beams and Columns (1) Beams and columns supported on masonry walls shall be supported on pilasters where the thickness of the masonry wall or wythe is less than 190 mm. (2) Not less than 190 mm depth of solid masonry or concrete shall be provided under the beam or column referred to in Sentence (1). […]