Construction codes of Ontario

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Dry Wells

(1) Dry wells are permitted to be used only when located in areas where the natural groundwater level is below the bottom of the dry well. (2) Dry wells shall be not less than 5 m from the building foundation and located so that drainage is away from the building. Article 9.14.5.3 Ontario Regulation 332/12 Building […]

Excavation to Undisturbed Soil

(1) Excavations for foundations shall extend to undisturbed soil. Article 9.12.2.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Excavation, Footings and Foundation

Excavation, Footings and Foundation A good foundation is essential for structural support and controlling ground water and forms part of the soil-gas control system (see Chapter 7 for more information).Determine the water conditions on the property, how water will be drained away from the foundation, and whether basement dampproofing will be adequate for the water […]

Exterior Concrete Stairs

Exterior Concrete Stairs (1) Exterior concrete stairs with more than two risers and two treads shall be, (a) supported on unit masonry or concrete walls or piers not less than 150 mm in cross-section, or (b) cantilevered from the main foundation wall. (2) Stairs described in Sentence (1), when cantilevered from the foundation wall, […]

Fabric form footing and ICF foundation wall

Fabric form footing and ICF foundation wall Fabric form footings are an innovative way to cast and form concrete footings using non-woven polypropylene, woven polyethylene or other similar materials, with the fabric supplied in a bag format to form pads for columns or a continuous format to form strip footings. The fabric is laid on […]

Finish grade sloped for drainage

Finish grade sloped for drainage The elevation of the first floor should allow for a minimum distance from finished grade to the beginning of exterior finishing (normally starting at the top of the foundation) of 150 mm (6 in.) for masonry and metal siding, and 200 mm (8 in.) for wood siding, plywood, hardboard and […]

Fire-Retardant Treated Wood

(1) If fire-retardant treated wood is specified in this Part, the wood shall, (a) be pressure impregnated with fire-retardant chemicals in conformance with CAN/CSA-O80 Series, “Wood Preservation”, and (b) have a flame-spread rating not more than 25. Article 3.1.4.5 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.