Construction codes of Ontario

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Flashing and factors that influence water flow

Flashing and factors that influence water flow Flashings must deal with the forces that drive the flow of water, because water can move upward and sideways as well as downward. These forces include gravity, surface tension, capillary action, kinetic energy and differential pressure. Gravity The building should have the following features to deflect water that […]

Flashing for Weep Holes in Masonry Veneer

Flashing for Weep Holes in Masonry Veneer (1) Flashing beneath weep holes in masonry veneer over masonry back-up walls shall conform to the flashing requirements for cavity walls and masonry veneer/masonry back-up walls in Article 9.20.13.5. (2) Flashing beneath weep holes in masonry veneer over wood frame walls shall be installed so that it extends from […]

Flashing for Weep Holes in Masonry Veneer/Masonry Walls

Flashing for Weep Holes in Masonry Veneer/Masonry Walls (1) Flashing beneath weep holes in cavity walls and masonry veneer/masonry back-up walls shall, (a) be bedded not less than 25 mm in the inside wythe, (b) extend to not less than 5 mm beyond the outer face of the building element below the flashing, and […]

Flashing Installation

Flashing Installation (1) Except as provided in Sentence (2), flashing shall be installed at, (a) every horizontal junction between claddings elements, (b) every horizontal offset in the cladding, and (c) every horizontal line where the cladding substrates change and where, (i) the substrates differ sufficiently for stresses to be concentrated along that […]

Flashing Joints

Flashing Joints (1) Joints in flashing shall be made watertight. Article 9.20.13.7. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Flashing Materials

Flashing Materials Table 9.20.13.1. Forming Part of Sentence 9.20.13.1.(1) Table 9.20.13.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Flashing Materials

(1) Flashing shall consist of not less than, (a) 1.73 mm thick sheet lead, (b) 0.33 mm thick galvanized steel, (c) 0.46 mm thick copper, (d) 0.46 mm thick zinc, (e) 0.48 mm thick aluminum, or (f) 1.02 mm thick vinyl. Article 9.27.3.7 Ontario Regulation 332/12 Building Code, Information […]