Construction codes of Ontario

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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 […]

Coverage of Asphalt Shingles on Slopes of 1 in 3 or Greater

Coverage of Asphalt Shingles on Slopes of 1 in 3 or Greater (1) Coverage shall be not less than two thicknesses of shingle over the entire roof, disregarding cutouts. Article 9.26.7.1. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only. Asphalt Shingles on Slopes 1:3 or Greater Asphalt strip shingles should […]

Deflections

(1) The maximum deflection of structural members shall conform to Table 9.4.3.1. (2) Dead loads need not be considered in computing deflections referred to in Sentence (1). Article 9.4.3.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Diameter of Nails for Framing – Table

Diameter of Nails for Framing Table 9.23.3.1. Forming Part of Sentence 9.23.3.1.(2) Table 9.23.3.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Eave Projection

Eave Projection The eave overhang gives some protection to the wall. Soffits are usually clad with prefinished perforated metal or vinyl panels (Figure 136). These are low maintenance and provide ample area for venting roof spaces without permitting insects to enter the space. A narrow eave projection is sometimes used on roofs with steep slopes. […]

Eave Protection Materials

Eave Protection Materials (1) Eave protection shall be laid beneath the starter strip and shall consist of, (a) No. 15 asphalt-saturated felt laid in two plies lapped 480 mm and cemented together with lap cement, (b) Type M or S roll roofing laid with not less than 100 mm head and end laps cemented […]