Construction codes of Ontario

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Base flashing

Base flashing When a roof intersects with a wall or another roof penetration, such as a plumbing vent, the roofing system should be turned up to make the junction watertight. The part of the roofing that is turned up is generally known as a “base flashing.” It may be made of the same material as […]

Blocking

Blocking (1) Blocking for the attachment of cladding shall be not less than 38 mm by 38 mm lumber securely nailed to the framing and spaced not more than 610 mm o.c. Article 9.27.5.2. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only

Bonded Wythes

Bonded Wythes (1) Where wythes are bonded together with masonry units, the bonding units shall comprise not less than 4 per cent of the wall surface area. (2) Bonding units described in Sentence (1) shall be spaced not more than 600 mm vertically and horizontally in the case of brick masonry and 900 mm o.c. in […]

Bonding and Tying of Intersecting Walls

Bonding and Tying of Intersecting Walls (1) Where required to provide lateral support, intersecting walls shall be bonded or tied together. (2) Where bonding is used to satisfy the requirements of Sentence (1), 50% of the adjacent masonry units in the intersecting wall, distributed uniformly over the height of the intersection, shall be embedded in the […]

Bonding or Tying of Other than Masonry Veneer

Bonding or Tying of Other than Masonry Veneer (1) Except as provided in Article 9.20.9.5 for masonry veneer, masonry walls that consist of two or more wythes shall have the wythes bonded or tied together with masonry bonding units as described in Article 9.20.9.3. or with metal ties as described in Articles 9.20.9.4. Article 9.20.9.2 Ontario […]

Bottom Wall Plates

Bottom Wall Plates (1) A bottom wall plate shall be provided in all cases. (2) The bottom plate in exterior walls shall not project more than one-third the plate width over the support. Article 9.23.11.2 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Bracing and Lateral Support of Exterior Wall

Bracing and Lateral Support of Exterior Wall (1) Except as provided in Sentence (2), each exterior wall in each storey shall be braced with at least one diagonal brace conforming to Sentence (3). (2) Bracing is not required where the walls, (a) have an interior finish conforming to the requirements of Section 9.29., or […]