Construction codes of Ontario

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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 (b) except as required by Sentence […]

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 […]

Double wall framing

Double wall framing can be used to provide more space for insulation (see Figure 19). The interior stud wall should be kept apart from the exterior load-bearing stud wall to allow for continuous insulation and prevent thermal bridges. The interior and exterior wall sections can be connected with OSB or plywood spacers and erected as […]

Elements of the Second Plane of Protection (Flashing)

Elements of the Second Plane of Protection (1) The second plane of protection shall consist of a drainage plane with appropriate inner boundary and flashing to dissipate rainwater to the exterior. (2) The inner boundary of the drainage plane shall comply with, (a) Articles 9.27.3.2. to 9.27.3.6., or (b) Subsection 9.27.13. (3) The […]

Fastening of Flashing

Fastening of Flashing (1) Fastening devices for flashing shall be corrosion-resistant and, where metal flashing is used, shall be compatible with the flashing with respect to galvanic action. Article 9.20.13.2 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Fire Block Materials

(1) Except as permitted by Sentences (2) to (4) and (7) fire blocks shall remain in place and prevent the passage of flames for not less than 15 min when subjected to the standard fire exposure in CAN/ULC-S101, “Fire Endurance Tests of Building Construction and Materials”. (2) Gypsum board not less than 12.7 mm thick and sheet […]

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 […]