Construction codes of Ontario

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Location of Smoke Alarms

Location of Smoke Alarms (1) Except as permitted in Article 9.10.19.8., within dwelling units, sufficient smoke alarms shall be installed so that, (a) there is at least one smoke alarm installed on each storey, including basements, and (b) on any storey of a dwelling unit containing sleeping rooms, a smoke alarm is installed, […]

Location of the Vapour Barrier

Location of the Vapour Barrier To prevent condensation from forming within building envelope assemblies, materials that act as vapour barriers (vapour retarders), including certain types of insulation, must be located within the assembly so that moisture moving from the inside to the outside does not condense and accumulate within the assembly. This means that vapour […]

Low Temperature Conditions Taping and Finishing

Low Temperature Conditions Taping and Finishing (1) In cold weather, heat shall be provided to maintain a temperature of not below 10°C for 48 h prior to taping and finishing and maintained for not less than 48 h after that. Article 9.29.5.10 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only

Mansard or Gambrel Roof Ventilation

Mansard or Gambrel Roof Ventilation, (1) The lower portion of a mansard or gambrel style roof need not be ventilated. (2) The upper portion of roofs described in Sentence (1) shall be ventilated in conformance with the requirements in Articles 9.19.1.1. to 9.19.1.3. Article 9.19.1.4 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for […]

Maximum Deflections

Table 9.4.3.1.Maximum Deflections Forming Part of Sentence 9.4.3.1.(1) Table 9.4.3.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Maximum number of insulated conductors in a box

Maximum number of insulated conductors in a box (see Appendix B) 1) Boxes shall be of sufficient size to provide usable space for all insulated conductors contained in the box, subject to the following: a) an insulated conductor running through a box with no connection therein shall be considered as one insulated conductor;b) each insulated […]

Maximum number of outlets per circuit (see Appendix B)

Maximum number of outlets per circuit (see Appendix B) 1) Except as permitted by other Rules of this Code, the maximum number of outlets on any 2-wire branch circuit shall not exceed the following: a) 12 outlets for a 15 A branch circuit where the fused switch or circuit breaker is marked for continuous operation […]