This is the City of Markham’s document, as published on its website on 18 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice
- Type
- Guide
- Published by
- City of Markham
- Date
- January 1, 2025
- Also called
- Smoke Alarms
- For
- designer
- Building types
- All building types
- Pages
- 4
- Instruments
- CAN/ULC-S531, Standard for Smoke Alarms · CAN/ULC-S524 · CAN/ULC-S537 · CAN/ULC-S553 · NFPA 72, National Fire Alarm and Signaling Code · CAN/ULC-S536
Overview
Markham's four-page Builder Tip No. 66, dated January 1, 2025 and updated to the 2024 OBC, on smoke alarms in Part 3 buildings, filed with the City's non-housing tips under the 2024 Ontario Building Code; a separate Part 9 smoke alarm tip sits with the housing tips. It quotes Article 3.2.4.20., Smoke Alarms, on alarms to CAN/ULC-S531 in each dwelling unit and sleeping room, hard-wiring with 7-day battery backup, smoke detectors in lieu, interconnection, silencing, temporal patterns and visual signals to NFPA 72 with 175 cd in sleeping rooms.
What it covers
- 3.2.4.20. Smoke Alarms
- Objectives
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