TorontoPlanning ApplicationsPlanning guidelines
Toronto Green Standard Guideline: Whole Building Air Leakage Testing Protocol
Published by City of Toronto
This is the City of Toronto’s document, as published on its website on 20 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice
- Type
- Guide
- Published by
- City of Toronto
- Date
- November 2022
- Also called
- City of Toronto Guidance Document, Air Tightness Testing Protocol and Process
- For
- designer
- Building types
- All building types
- Pages
- 4
- Agencies
- City of Toronto City Planning · WSP Canada Inc · RDH Building Science Inc
- Instruments
- ASTM E3158-18 · ASTM E779-19 · ASTM E1827-11 · ISO 9972:2015 · CAN/CGSB-149.10-M86 · ATTMA 2015 Technical Standard L2 · Toronto Green Standard
Overview
The City of Toronto City Planning guideline on whole building air leakage testing, prepared with WSP Canada, Ryerson University's Department of Architectural Science and RDH Building Science, and read alongside ASTM E3158-18. Four pages set the testing target of 2.0 L/s m² at 75 Pa, the procedure for whole-building and guarded testing including how many floors a sampling covers, the test-day conditions and tester qualifications, a list of reference standards, and what Tier 2 third party verification takes at construction documents and project completion.
What it covers
- Purpose
- 1. Testing Target
- 2. Testing Procedures
- Test method
- 3. Reference Documents
- 4. TGS Tier 2 Submittal Requirements for Third Party Verification
- 4.1. Construction Documents (CD) Stage Submittal
- 4.2. Project Completion Submittal
- 5. Guidance
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