Construction codes of Ontario

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OSB and Waferboard Thickness

OSB and Waferboard Thickness (1) OSB conforming to O-2 grade shall be not less than 6.0 mm thick where applied directly to sheathing. (2) OSB conforming to O-2 grade applied directly to framing or over furring strips shall conform to the thickness shown for plywood in Table 9.27.8.2. (3) OSB conforming to O-1 grade and waferboard conforming to […]

OSB, Waferboard and Plywood Marking

(1) OSB, waferboard and plywood used for roof sheathing, wall sheathing and subflooring shall be legibly identified on the face of the material indicating, (a) the manufacturer of the material, (b) the standard to which it is produced, and (c) that the material is of an exterior type. Article 9.3.2.4 Ontario Regulation 332/12 […]

Performance of Windows, Doors and Skylights General

Performance of Windows, Doors and Skylights (1) Except as provided in Sentences (2) to (4), windows, doors and skylights and their components separating conditioned space from unconditioned space or the exterior shall be designed, constructed and installed so that, when in the closed position, they, (a) resist the ingress of precipitation into interior space, […]

Platforms Subject to Snow and Occupancy Loads

Platforms Subject to Snow and Occupancy Loads (1) Balconies, decks and other accessible exterior platforms intended for an occupancy and subject to snow loads shall be designed to carry the specified roof snow load or 1.9 kPa, whichever is greater, where the platform, or each segregated area of the platform, serves a house or an […]

Polyethylene strips at end of partition and over wall top plates

Polyethylene strips at end of partition and over wall top plates It is common to install the ceiling air barrier before the interior partitions are built, because it is easier to make an airtight connection between the wall top plates and unconditioned spaces (such as attics). Alternatively, when the interior partitions are built before the […]

Prevention of Splitting

Prevention of Splitting (1) Splitting of wood members shall be minimized by staggering the nails in the direction of the grain and by keeping nails well in from the edges. Article 9.23.3.3. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Priming of Steel Beams

Priming of Steel Beams (1) Exterior steel beams susceptible to corrosion shall be shop primed with rust-inhibitive paint. Article 9.23.8.2. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.