Construction codes of Ontario

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Protection of Wood from Dampness

Protection of Wood from Dampness (1) Except as permitted in Sentence (2), wood framing members that are not pressure-treated with a wood preservative and that are supported on concrete in contact with the ground or fill shall be separated from the concrete by not less than 0.05 mm polyethylene film or Type S roll roofing. (2) Dampproofing […]

Rafter-to-Joist Nailing (Unsupported Ridge)

Rafter-to-Joist Nailing (Unsupported Ridge) Table 9.23.13.8. Forming Part of Sentences 9.23.13.8.(5) and (6) Table 9.23.13.8. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Rating for Subfloor when Applying CSA O325

Rating for Subfloor when Applying CSA O325 Table 9.23.14.5.B. Forming Part of Sentences 9.23.14.5.(1) and 9.23.15.7.(1) Table 9.23.14.5.B Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Rating For Wall Sheathing When Applying CSA O325

Rating For Wall Sheathing When Applying CSA O325 Table 9.23.16.2.B.Rating For Wall Sheathing When Applying CSA O325 Forming Part of Sentence 9.23.16.2.(1) Table 9.23.16.2B Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Required Barrier to Vapour Diffusion

(1) Thermally insulated wall, ceiling and floor assemblies shall be constructed with a vapour barrier sufficient to prevent condensation in the wall spaces, floor spaces or attic or roof spaces. Article 9.25.4.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only. A vapour Barrier is required for insulation installed between the […]

Required Firewalls

Required Firewalls (1) Except as provided in Articles 9.10.11.2. and 9.10.11.4., a party wall on a property line shall be constructed as a firewall. Article 9.10.11.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Required Sheathing Membrane and Installation

Required Sheathing Membrane and Installation (1) Except as provided in Articles 9.27.3.4. to 9.27.3.6., at least one layer of sheathing membrane shall be applied beneath siding, stucco or masonry veneer. (2) Sheathing membrane required in Sentence (1) shall be applied so that joints are lapped not less than 100 mm. (3) Where sheathing membrane required in Sentence (1) […]