Construction codes of Ontario

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Combustion Air Masonry Fireplaces

Combustion Air Masonry Fireplaces (1) Every solid fuel-fired fireplace, including a factory-built fireplace, shall have a supply of combustion air from outdoors in accordance with Sentences (2) to (7). (2) The combustion air shall be supplied by a noncombustible and corrosion-resistant supply duct. (3) The supply duct shall have, (a) a diameter of not less […]

Concrete Liners

Concrete Liners (1) Concrete flue liners shall conform to Clause 4.2.6.4. of CAN/CSA-A405-M, “Design and Construction of Masonry Chimneys and Fireplaces”. Article 9.21.3.5 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Connections of More Than One Appliance

Connections of More Than One Appliance (1) Except as required in Article 9.21.2.1., two or more fuel-burning appliances are permitted to be connected to the same chimney flue provided adequate draft is maintained for the connected appliances and the connections are made as described in Sentences (2) and (3). (2) Where two or more solid […]

Continuity of the Air Barrier System

Continuity of the Air Barrier System (1) Where the air barrier system consists of an air-impermeable panel-type material, all joints shall be sealed to minimize air leakage. (2) Where the air barrier system consists of flexible sheet material, all joints shall be, (a) sealed with compatible material such as tape or flexible sealant, or […]

Counter Flashing

Counter Flashing To prevent water from penetrating behind the top edge of base flashing, a separate piece of flashing should be provided over the top. This flashing is known as “counter flashing” and is usually made of sheet metal (see Figure 119). Figure 119 Oncodes.ca publishes this information for educational purposes only (CMHC) Note : Counter […]

Electrical Cable Method of installation (see Appendices B and G) Non-metallic-sheathed cable

Electrical Cable Method of installation (see Appendices B and G) Non-metallic-sheathed cable 1) The cable shall be run in continuous lengths between outlet boxes, junction boxes, and panel boxes as a loop system and the joints, splices, and taps shall be made in the boxes. 2) Where concealed wiring is connected to non-metallic-sheathed cable, the […]

Extension of Chimney Liners

Extension of Chimney Liners (1) Chimney liners shall extend from a point not less than 200 mm below the lowest flue pipe connection to a point not less than 50 mm or more than 100 mm above the chimney cap. Article 9.21.3.10 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.